diff --git a/apps/app/src/components/thread/pending-interactions/ThreadPendingInteractionBanner.tsx b/apps/app/src/components/thread/pending-interactions/ThreadPendingInteractionBanner.tsx
index 92a7c23b20..15a01cf152 100644
--- a/apps/app/src/components/thread/pending-interactions/ThreadPendingInteractionBanner.tsx
+++ b/apps/app/src/components/thread/pending-interactions/ThreadPendingInteractionBanner.tsx
@@ -397,8 +397,8 @@ function buildApprovalSubject({
       };
     }
     case "tool_use": {
-      // Declarative base only: no producer emits this subject until WS5
-      // designs the tool-use approval surface.
+      // The ACP bridge raises this for generic tool permissions; the subject's
+      // presentation is the banner's base until WS5 designs the tool-use surface.
       const detailLines =
         formatPendingInteractionSubjectDetailLines(interaction);
       return {
diff --git a/apps/mobile/src/data/interactions/approval-presentation.ts b/apps/mobile/src/data/interactions/approval-presentation.ts
index 0a842fbf2e..21a77c9570 100644
--- a/apps/mobile/src/data/interactions/approval-presentation.ts
+++ b/apps/mobile/src/data/interactions/approval-presentation.ts
@@ -78,8 +78,8 @@ export function describeApprovalSubject(
         plan: subject.plan,
         detailLines: subject.planFilePath ? [subject.planFilePath] : [],
       };
-    // Declarative base only: no producer emits this subject until WS5
-    // designs the tool-use approval surface.
+    // The ACP bridge raises this for generic tool permissions; the subject's
+    // presentation is the banner's base until WS5 designs the tool-use surface.
     case "tool_use":
       return {
         title: payload.reason ?? subject.presentation.label.pending,
diff --git a/apps/server/src/internal/interactive-requests.ts b/apps/server/src/internal/interactive-requests.ts
index ec3ad65f99..c2ec1c96cb 100644
--- a/apps/server/src/internal/interactive-requests.ts
+++ b/apps/server/src/internal/interactive-requests.ts
@@ -42,7 +42,6 @@ function pendingInteractionBlockerLabel(
       return "permission grant";
     case "plan":
       return "plan review";
-    // Declarative base only: no producer emits this subject until WS5.
     case "tool_use":
       return "tool-use approval";
     default: {
diff --git a/apps/server/src/services/interactions/pending-interaction-timeline.ts b/apps/server/src/services/interactions/pending-interaction-timeline.ts
index 9b0ec3432a..5867085b09 100644
--- a/apps/server/src/services/interactions/pending-interaction-timeline.ts
+++ b/apps/server/src/services/interactions/pending-interaction-timeline.ts
@@ -444,12 +444,12 @@ export function appendPendingInteractionTimelineEvent(
     // duplicate it.
     case "plan":
       return;
-    // Unsupported until WS5 (interactions): no producer raises tool_use yet,
-    // and the single interaction-lifecycle event it will ride does not exist.
+    // A tool-use approval has no timeline item of its own: the provider's own
+    // tool call (the ACP agent's tool_call with the same id) is the timeline
+    // record, and the banner renders the subject's presentation. The single
+    // interaction-lifecycle event it will ride is WS5's (interactions).
     case "tool_use":
-      throw new Error(
-        "tool_use approval subjects are not produced until WS5 (interactions)",
-      );
+      return;
     default:
       return assertNever(subject, "Unsupported approval subject for timeline");
   }
@@ -504,11 +504,10 @@ export function appendPendingInteractionTimelineEventInTransaction(
     // already the timeline record.
     case "plan":
       return;
-    // Unsupported until WS5: see appendPendingInteractionTimelineEvent.
+    // See appendPendingInteractionTimelineEvent: the provider's own tool call
+    // is the timeline record.
     case "tool_use":
-      throw new Error(
-        "tool_use approval subjects are not produced until WS5 (interactions)",
-      );
+      return;
     default:
       return assertNever(subject, "Unsupported approval subject for timeline");
   }
diff --git a/apps/server/test/helpers/pending-interactions.ts b/apps/server/test/helpers/pending-interactions.ts
index bd21792e3b..4663544be2 100644
--- a/apps/server/test/helpers/pending-interactions.ts
+++ b/apps/server/test/helpers/pending-interactions.ts
@@ -35,6 +35,13 @@ type PermissionGrantApprovalPayloadOptions = {
   availableDecisions?: PendingInteractionApprovalDecision[];
 };
 
+type ToolUseApprovalPayloadOptions = {
+  itemId?: string;
+  reason?: string | null;
+  tool?: string;
+  availableDecisions?: PendingInteractionApprovalDecision[];
+};
+
 type UserQuestionPayloadOptions = {
   allowFreeText?: boolean;
   multiSelect?: boolean;
@@ -122,6 +129,27 @@ export function createPermissionGrantApprovalPayload(
   };
 }
 
+export function createToolUseApprovalPayload(
+  options: ToolUseApprovalPayloadOptions = {},
+): ApprovalPendingInteractionPayload {
+  return {
+    kind: "approval",
+    subject: {
+      kind: "tool_use",
+      itemId: options.itemId ?? "item-tool-use-approval",
+      tool: options.tool ?? "fetch",
+      presentation: {
+        label: { pending: "Fetching", completed: "Fetched" },
+        icon: { glyph: "Globe" },
+        title: "Fetch docs",
+      },
+    },
+    reason: options.reason ?? null,
+    availableDecisions:
+      options.availableDecisions ?? defaultBinaryAvailableDecisions,
+  };
+}
+
 export function createUserQuestionPayload(
   options: UserQuestionPayloadOptions = {},
 ): UserQuestionPendingInteractionPayload {
diff --git a/apps/server/test/services/pending-interactions.test.ts b/apps/server/test/services/pending-interactions.test.ts
index 7479f3c4ce..86f33746ec 100644
--- a/apps/server/test/services/pending-interactions.test.ts
+++ b/apps/server/test/services/pending-interactions.test.ts
@@ -21,8 +21,10 @@ import {
   createAllowForSessionResolution,
   createAllowOnceResolution,
   createCommandApprovalPayload,
+  createDenyResolution,
   createFileChangeApprovalPayload,
   createPermissionGrantApprovalPayload,
+  createToolUseApprovalPayload,
   createUserAnswerResolution,
   createUserQuestionPayload,
 } from "../helpers/pending-interactions.js";
@@ -1044,6 +1046,69 @@ describe("pending interaction lifecycle", () => {
     });
   });
 
+  it("accepts tool-use approvals without a timeline item of their own", async () => {
+    // The ACP bridge raises tool_use for every permission that is neither a
+    // command nor a file change. The provider's own tool call is the timeline
+    // record, so the lifecycle appends no item event for the subject, and a
+    // denial settles it like any other approval.
+    await withTestHarness(async (harness) => {
+      const { host } = seedHostSession(harness.deps, {
+        id: "host-pending-interaction-tool-use",
+      });
+      const { project } = seedProjectWithSource(harness.deps, {
+        hostId: host.id,
+      });
+      const environment = seedEnvironment(harness.deps, {
+        hostId: host.id,
+        projectId: project.id,
+      });
+      const thread = seedThread(harness.deps, {
+        projectId: project.id,
+        environmentId: environment.id,
+      });
+
+      const created = registerPendingInteraction(
+        harness.deps,
+        harness.deps.pendingInteractions,
+        {
+          threadId: thread.id,
+          turnId: "turn-tool-use",
+          providerId: "codex",
+          providerThreadId: "provider-thread-tool-use",
+          providerRequestId: "request-tool-use",
+          payload: createToolUseApprovalPayload({ itemId: "mcp-call-1" }),
+        },
+      );
+      if (created.outcome === "rejected") {
+        throw new Error(
+          `Expected interaction registration to succeed: ${created.reason}`,
+        );
+      }
+      const itemEventsFor = () =>
+        harness.db
+          .select()
+          .from(eventTable)
+          .where(eq(eventTable.threadId, thread.id))
+          .all()
+          .filter((row) => row.type.startsWith("item/"));
+      expect(itemEventsFor()).toEqual([]);
+
+      expect(
+        harness.deps.pendingInteractions.resolvePendingInteraction({
+          threadId: thread.id,
+          interactionId: created.interaction.id,
+          resolution: createDenyResolution(),
+        }),
+      ).toEqual(
+        expect.objectContaining({
+          status: "resolving",
+          resolution: expect.objectContaining({ decision: "deny" }),
+        }),
+      );
+      expect(itemEventsFor()).toEqual([]);
+    });
+  });
+
   it("allows command approvals to grant explicit session permissions for session decisions", async () => {
     await withTestHarness(async (harness) => {
       const { host } = seedHostSession(harness.deps, {
diff --git a/docs/provider-bridge-protocol.md b/docs/provider-bridge-protocol.md
index 61ec1cee53..42b3ef400f 100644
--- a/docs/provider-bridge-protocol.md
+++ b/docs/provider-bridge-protocol.md
@@ -221,7 +221,8 @@ range is what gates a bridge: every bridge in this repo reports
   `delegation` (`childRef`, `label`, `background`, `summary?`; one shape for
   codex `spawnAgent`/`wait`, the Claude `Agent` tool, and backgrounded
   agents, which replaced `thread/openWork`), and `planSteps` (a structured plan
-  snapshot as an item, beside the turn-level `turn.plan`).
+  snapshot as an item, which replaced the turn-level `turn.plan` delta once
+  the ACP bridge — its last speaker — migrated).
 - **`presentation`** on `item.open` and `item.close`, the one place it
   travels: `label {pending, completed}`, `icon {glyph}` (host glyphs only —
   a plugin-relative asset path cannot outlive the plugin, and a durable
diff --git a/packages/agent-runtime/src/test/runtime-integration-harness.ts b/packages/agent-runtime/src/test/runtime-integration-harness.ts
index 9c0ce8b5f9..c0cfa5a916 100644
--- a/packages/agent-runtime/src/test/runtime-integration-harness.ts
+++ b/packages/agent-runtime/src/test/runtime-integration-harness.ts
@@ -730,8 +730,11 @@ function expectSemanticApprovalRequest(
       expect(request.payload.subject.plan.length).toBeGreaterThan(0);
       break;
     case "tool_use":
-      // Unsupported until WS5: no fake or real producer raises it yet.
-      throw new Error("tool_use approval subjects are not produced until WS5");
+      expect(request.payload.subject.tool.length).toBeGreaterThan(0);
+      expect(
+        request.payload.subject.presentation.label.pending.length,
+      ).toBeGreaterThan(0);
+      break;
   }
   expect(request.payload.availableDecisions.length).toBeGreaterThan(0);
   for (const decision of request.payload.availableDecisions) {
diff --git a/packages/core-ui/src/pending-interaction-formatting.ts b/packages/core-ui/src/pending-interaction-formatting.ts
index f0f7c85fb4..89286590bc 100644
--- a/packages/core-ui/src/pending-interaction-formatting.ts
+++ b/packages/core-ui/src/pending-interaction-formatting.ts
@@ -187,8 +187,8 @@ export function formatPendingInteractionSubjectDetailLines(
         : [];
     }
     case "tool_use": {
-      // Declarative base only: no producer emits this subject until WS5
-      // rewires the interaction producers and designs the tool-use surface.
+      // Raised by the ACP bridge for generic tool permissions; WS5 designs the
+      // tool-use surface.
       const { tool, presentation } = interaction.payload.subject;
       return [
         `Tool: ${tool}`,
diff --git a/packages/domain/src/pending-interactions.ts b/packages/domain/src/pending-interactions.ts
index 562249c711..3d380e326d 100644
--- a/packages/domain/src/pending-interactions.ts
+++ b/packages/domain/src/pending-interactions.ts
@@ -171,8 +171,8 @@ const pendingInteractionPlanApprovalSubjectSchema = z.object({
  * kind). Policy-bearing like the other approval subjects: `auto` approves it,
  * `accept-edits` asks. `presentation` is the bridge's declarative rendering
  * of the call, so the approval banner reads the same on every client with no
- * tool-name table. Not yet produced by any bridge: WS5 (interactions) rewires
- * the producers.
+ * tool-name table. The ACP bridge raises it for every permission that is
+ * neither a command nor a file change; WS5 (interactions) rewires the rest.
  */
 export const pendingInteractionToolUseApprovalSubjectSchema = z.object({
   kind: z.literal("tool_use"),
diff --git "a/packages/provider-bridge-protocol/recordings/acp-cursor/approval-allow/bridge\342\206\222runtime.current.ndjson" "b/packages/provider-bridge-protocol/recordings/acp-cursor/approval-allow/bridge\342\206\222runtime.current.ndjson"
index 94e2291b0b..86277ab107 100644
--- "a/packages/provider-bridge-protocol/recordings/acp-cursor/approval-allow/bridge\342\206\222runtime.current.ndjson"
+++ "b/packages/provider-bridge-protocol/recordings/acp-cursor/approval-allow/bridge\342\206\222runtime.current.ndjson"
@@ -18,10 +18,10 @@
 {"ts":1787275210707,"run":1787275054108,"seq":420.48387096774195,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\" with\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\" with\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787275210708,"run":1787275054108,"seq":420.51612903225805,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\" done\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\" done\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787275210709,"run":1787275054108,"seq":420.5483870967742,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\".\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\".\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
-{"ts":1787275210710,"run":1787275054108,"seq":420.5806451612903,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-a5291c91-4515-4485-a393-4d0985ceacd6-0\\nfc_1b010475-e3b1-9da1-a50b-fe717290b58d_0\"},\"item\":{\"type\":\"command\",\"command\":\"touch approved.txt\",\"cwd\":\"\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"update\":{\"toolCallId\":\"call-a5291c91-4515-4485-a393-4d0985ceacd6-0\\nfc_1b010475-e3b1-9da1-a50b-fe717290b58d_0\",\"title\":\"`touch approved.txt`\",\"kind\":\"execute\",\"status\":\"pending\",\"rawInput\":{\"command\":\"touch approved.txt\"},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
+{"ts":1787275210710,"run":1787275054108,"seq":420.5806451612903,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-a5291c91-4515-4485-a393-4d0985ceacd6-0\\nfc_1b010475-e3b1-9da1-a50b-fe717290b58d_0\"},\"item\":{\"type\":\"command\",\"command\":\"touch approved.txt\",\"cwd\":\"\"},\"presentation\":{\"label\":{\"pending\":\"Running command\",\"completed\":\"Ran command\"},\"icon\":{\"glyph\":\"Terminal\"},\"title\":\"touch approved.txt\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"update\":{\"toolCallId\":\"call-a5291c91-4515-4485-a393-4d0985ceacd6-0\\nfc_1b010475-e3b1-9da1-a50b-fe717290b58d_0\",\"title\":\"`touch approved.txt`\",\"kind\":\"execute\",\"status\":\"pending\",\"rawInput\":{\"command\":\"touch approved.txt\"},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
 {"ts":1787275210711,"run":1787275054108,"seq":420.61290322580646,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"deltas\":[{\"kind\":\"unhandled\",\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"update\":{\"toolCallId\":\"call-a5291c91-4515-4485-a393-4d0985ceacd6-0\\nfc_1b010475-e3b1-9da1-a50b-fe717290b58d_0\",\"status\":\"in_progress\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\",\"vouchedTurn\":false,\"onlyIfNoTurn\":true}]}}"}
 {"ts":1787275210712,"run":1787275054108,"seq":420.64516129032256,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"interaction/request\",\"params\":{\"providerThreadId\":\"5d5e98e5-e088-4805-af26-5243072c5360\",\"threadId\":\"thr_zbuujsu6ym\",\"turnId\":null,\"payload\":{\"kind\":\"approval\",\"subject\":{\"kind\":\"command\",\"itemId\":\"call-a5291c91-4515-4485-a393-4d0985ceacd6-0\\nfc_1b010475-e3b1-9da1-a50b-fe717290b58d_0\",\"command\":\"`touch approved.txt`\",\"cwd\":null,\"actions\":[{\"type\":\"unknown\",\"command\":\"`touch approved.txt`\"}],\"sessionGrant\":null},\"reason\":null,\"availableDecisions\":[\"allow_once\",\"allow_for_session\",\"deny\"]}}}"}
-{"ts":1787275210713,"run":1787275054108,"seq":420.6774193548387,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-a5291c91-4515-4485-a393-4d0985ceacd6-0\\nfc_1b010475-e3b1-9da1-a50b-fe717290b58d_0\"},\"status\":\"completed\",\"resultText\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"\\\",\\\"stderr\\\":\\\"\\\"}\",\"aggregatedOutput\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"\\\",\\\"stderr\\\":\\\"\\\"}\",\"exitCode\":0,\"item\":{\"type\":\"command\",\"command\":\"touch approved.txt\",\"cwd\":\"\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"update\":{\"toolCallId\":\"call-a5291c91-4515-4485-a393-4d0985ceacd6-0\\nfc_1b010475-e3b1-9da1-a50b-fe717290b58d_0\",\"status\":\"completed\",\"rawOutput\":{\"exitCode\":0,\"stdout\":\"\",\"stderr\":\"\"},\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
+{"ts":1787275210713,"run":1787275054108,"seq":420.6774193548387,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-a5291c91-4515-4485-a393-4d0985ceacd6-0\\nfc_1b010475-e3b1-9da1-a50b-fe717290b58d_0\"},\"status\":\"completed\",\"resultText\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"\\\",\\\"stderr\\\":\\\"\\\"}\",\"aggregatedOutput\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"\\\",\\\"stderr\\\":\\\"\\\"}\",\"exitCode\":0,\"item\":{\"type\":\"command\",\"command\":\"touch approved.txt\",\"cwd\":\"\"},\"presentation\":{\"label\":{\"pending\":\"Running command\",\"completed\":\"Ran command\"},\"icon\":{\"glyph\":\"Terminal\"},\"title\":\"touch approved.txt\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"update\":{\"toolCallId\":\"call-a5291c91-4515-4485-a393-4d0985ceacd6-0\\nfc_1b010475-e3b1-9da1-a50b-fe717290b58d_0\",\"status\":\"completed\",\"rawOutput\":{\"exitCode\":0,\"stdout\":\"\",\"stderr\":\"\"},\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
 {"ts":1787275210714,"run":1787275054108,"seq":420.7096774193548,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"The command succeeded.\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"The command succeeded.\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787275210715,"run":1787275054108,"seq":420.741935483871,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" I will reply with the\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" I will reply with the\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787275210716,"run":1787275054108,"seq":420.7741935483871,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" single word \\\"done\\\".\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_zbuujsu6ym\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" single word \\\"done\\\".\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
diff --git "a/packages/provider-bridge-protocol/recordings/acp-cursor/approval-deny/bridge\342\206\222runtime.current.ndjson" "b/packages/provider-bridge-protocol/recordings/acp-cursor/approval-deny/bridge\342\206\222runtime.current.ndjson"
index 6efb23219d..a98d3fb12c 100644
--- "a/packages/provider-bridge-protocol/recordings/acp-cursor/approval-deny/bridge\342\206\222runtime.current.ndjson"
+++ "b/packages/provider-bridge-protocol/recordings/acp-cursor/approval-deny/bridge\342\206\222runtime.current.ndjson"
@@ -18,10 +18,10 @@
 {"ts":1787275712420,"run":1787275054108,"seq":483.51724137931035,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\" workspace\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\" workspace\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787275712421,"run":1787275054108,"seq":483.55172413793105,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\" now\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\" now\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787275712422,"run":1787275054108,"seq":483.58620689655174,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\".\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\".\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
-{"ts":1787275712423,"run":1787275054108,"seq":483.62068965517244,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-83bc13c1-2d30-4608-ac47-126c5026daca-0\\nfc_cd0b1686-4d7f-90f5-8ff1-14ce063a6858_0\"},\"item\":{\"type\":\"command\",\"command\":\"touch ~/bb-recording-outside.txt\",\"cwd\":\"\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"update\":{\"toolCallId\":\"call-83bc13c1-2d30-4608-ac47-126c5026daca-0\\nfc_cd0b1686-4d7f-90f5-8ff1-14ce063a6858_0\",\"title\":\"`touch ~/bb-recording-outside.txt`\",\"kind\":\"execute\",\"status\":\"pending\",\"rawInput\":{\"command\":\"touch ~/bb-recording-outside.txt\"},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
+{"ts":1787275712423,"run":1787275054108,"seq":483.62068965517244,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-83bc13c1-2d30-4608-ac47-126c5026daca-0\\nfc_cd0b1686-4d7f-90f5-8ff1-14ce063a6858_0\"},\"item\":{\"type\":\"command\",\"command\":\"touch ~/bb-recording-outside.txt\",\"cwd\":\"\"},\"presentation\":{\"label\":{\"pending\":\"Running command\",\"completed\":\"Ran command\"},\"icon\":{\"glyph\":\"Terminal\"},\"title\":\"touch ~/bb-recording-outside.txt\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"update\":{\"toolCallId\":\"call-83bc13c1-2d30-4608-ac47-126c5026daca-0\\nfc_cd0b1686-4d7f-90f5-8ff1-14ce063a6858_0\",\"title\":\"`touch ~/bb-recording-outside.txt`\",\"kind\":\"execute\",\"status\":\"pending\",\"rawInput\":{\"command\":\"touch ~/bb-recording-outside.txt\"},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
 {"ts":1787275712424,"run":1787275054108,"seq":483.6551724137931,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"deltas\":[{\"kind\":\"unhandled\",\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"update\":{\"toolCallId\":\"call-83bc13c1-2d30-4608-ac47-126c5026daca-0\\nfc_cd0b1686-4d7f-90f5-8ff1-14ce063a6858_0\",\"status\":\"in_progress\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\",\"vouchedTurn\":false,\"onlyIfNoTurn\":true}]}}"}
 {"ts":1787275712425,"run":1787275054108,"seq":483.6896551724138,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"id\":2,\"method\":\"interaction/request\",\"params\":{\"providerThreadId\":\"39f467bf-db3e-4c7f-8d55-bc6d61e8bb25\",\"threadId\":\"thr_ndmjucnqqh\",\"turnId\":null,\"payload\":{\"kind\":\"approval\",\"subject\":{\"kind\":\"command\",\"itemId\":\"call-83bc13c1-2d30-4608-ac47-126c5026daca-0\\nfc_cd0b1686-4d7f-90f5-8ff1-14ce063a6858_0\",\"command\":\"`touch ~/bb-recording-outside.txt`\",\"cwd\":null,\"actions\":[{\"type\":\"unknown\",\"command\":\"`touch ~/bb-recording-outside.txt`\"}],\"sessionGrant\":null},\"reason\":null,\"availableDecisions\":[\"allow_once\",\"allow_for_session\",\"deny\"]}}}"}
-{"ts":1787275712426,"run":1787275054108,"seq":483.7241379310345,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-83bc13c1-2d30-4608-ac47-126c5026daca-0\\nfc_cd0b1686-4d7f-90f5-8ff1-14ce063a6858_0\"},\"status\":\"completed\",\"exitCode\":0,\"item\":{\"type\":\"command\",\"command\":\"touch ~/bb-recording-outside.txt\",\"cwd\":\"\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"update\":{\"toolCallId\":\"call-83bc13c1-2d30-4608-ac47-126c5026daca-0\\nfc_cd0b1686-4d7f-90f5-8ff1-14ce063a6858_0\",\"status\":\"completed\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
+{"ts":1787275712426,"run":1787275054108,"seq":483.7241379310345,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-83bc13c1-2d30-4608-ac47-126c5026daca-0\\nfc_cd0b1686-4d7f-90f5-8ff1-14ce063a6858_0\"},\"status\":\"completed\",\"exitCode\":0,\"item\":{\"type\":\"command\",\"command\":\"touch ~/bb-recording-outside.txt\",\"cwd\":\"\"},\"presentation\":{\"label\":{\"pending\":\"Running command\",\"completed\":\"Ran command\"},\"icon\":{\"glyph\":\"Terminal\"},\"title\":\"touch ~/bb-recording-outside.txt\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"update\":{\"toolCallId\":\"call-83bc13c1-2d30-4608-ac47-126c5026daca-0\\nfc_cd0b1686-4d7f-90f5-8ff1-14ce063a6858_0\",\"status\":\"completed\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
 {"ts":1787275712427,"run":1787275054108,"seq":483.7586206896552,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"The command was denied.\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"The command was denied.\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787275712428,"run":1787275054108,"seq":483.7931034482759,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\"denied\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\"denied\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787275712429,"run":1787275054108,"seq":483.82758620689657,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ndmjucnqqh\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"turn.boundary\",\"status\":\"completed\",\"claimIfIdle\":true}]}}"}
diff --git "a/packages/provider-bridge-protocol/recordings/acp-cursor/fork/bridge\342\206\222runtime.current.ndjson" "b/packages/provider-bridge-protocol/recordings/acp-cursor/fork/bridge\342\206\222runtime.current.ndjson"
index d56c1f9a67..666e5ed80a 100644
--- "a/packages/provider-bridge-protocol/recordings/acp-cursor/fork/bridge\342\206\222runtime.current.ndjson"
+++ "b/packages/provider-bridge-protocol/recordings/acp-cursor/fork/bridge\342\206\222runtime.current.ndjson"
@@ -1 +1 @@
-{"ts":1787277411190,"run":1787275054108,"seq":3030.3333333333335,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"id\":160,\"error\":{\"code\":-32000,\"message\":\"ACP agent \\\"/home/user/.nvm/versions/node/v24.18.0/bin/node /home/user/.bb/worktrees/env_jtvch22h7b/bb/packages/provider-bridge-protocol/src/testing/replay-provider-child.mjs --recording /home/user/.bb/worktrees/env_jtvch22h7b/bb/packages/provider-bridge-protocol/recordings/acp-cursor/fork --dialect json-rpc --state /tmp/bb-parity-replay-R6qHsJ\\\" does not advertise session/fork support.\"}}"}
+{"ts":1787277411190,"run":1787275054108,"seq":3030.3333333333335,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"id\":160,\"error\":{\"code\":-32000,\"message\":\"ACP agent \\\"/home/user/.nvm/versions/node/v24.18.0/bin/node /home/user/.bb/worktrees/env_ir9ydcwdxj/bb/packages/provider-bridge-protocol/src/testing/replay-provider-child.mjs --recording /home/user/.bb/worktrees/env_ir9ydcwdxj/bb/packages/provider-bridge-protocol/recordings/acp-cursor/fork --dialect json-rpc --state /tmp/bb-parity-replay-gtnJTx\\\" does not advertise session/fork support.\"}}"}
diff --git "a/packages/provider-bridge-protocol/recordings/acp-cursor/steer/bridge\342\206\222runtime.current.ndjson" "b/packages/provider-bridge-protocol/recordings/acp-cursor/steer/bridge\342\206\222runtime.current.ndjson"
index 9a7c981447..201c04b5cf 100644
--- "a/packages/provider-bridge-protocol/recordings/acp-cursor/steer/bridge\342\206\222runtime.current.ndjson"
+++ "b/packages/provider-bridge-protocol/recordings/acp-cursor/steer/bridge\342\206\222runtime.current.ndjson"
@@ -12,23 +12,23 @@
 {"ts":1787275088202,"run":1787275054108,"seq":200.15254237288136,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" shell between every\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" shell between every\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787275088203,"run":1787275054108,"seq":200.16949152542372,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" number.\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" number.\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787275088204,"run":1787275054108,"seq":200.1864406779661,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\"1\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\"1\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
-{"ts":1787275088205,"run":1787275054108,"seq":200.20338983050848,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-ff3321e8-5c82-46e5-bbf3-c651b4ba4bb9-0\\nfc_ee73eece-0644-9814-8c6d-2b16d5262859_0\"},\"item\":{\"type\":\"command\",\"command\":\"sleep 2\",\"cwd\":\"\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"toolCallId\":\"call-ff3321e8-5c82-46e5-bbf3-c651b4ba4bb9-0\\nfc_ee73eece-0644-9814-8c6d-2b16d5262859_0\",\"title\":\"`sleep 2`\",\"kind\":\"execute\",\"status\":\"pending\",\"rawInput\":{\"command\":\"sleep 2\"},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
+{"ts":1787275088205,"run":1787275054108,"seq":200.20338983050848,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-ff3321e8-5c82-46e5-bbf3-c651b4ba4bb9-0\\nfc_ee73eece-0644-9814-8c6d-2b16d5262859_0\"},\"item\":{\"type\":\"command\",\"command\":\"sleep 2\",\"cwd\":\"\"},\"presentation\":{\"label\":{\"pending\":\"Running command\",\"completed\":\"Ran command\"},\"icon\":{\"glyph\":\"Terminal\"},\"title\":\"sleep 2\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"toolCallId\":\"call-ff3321e8-5c82-46e5-bbf3-c651b4ba4bb9-0\\nfc_ee73eece-0644-9814-8c6d-2b16d5262859_0\",\"title\":\"`sleep 2`\",\"kind\":\"execute\",\"status\":\"pending\",\"rawInput\":{\"command\":\"sleep 2\"},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
 {"ts":1787275088206,"run":1787275054108,"seq":200.22033898305085,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"unhandled\",\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"toolCallId\":\"call-ff3321e8-5c82-46e5-bbf3-c651b4ba4bb9-0\\nfc_ee73eece-0644-9814-8c6d-2b16d5262859_0\",\"status\":\"in_progress\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\",\"vouchedTurn\":false,\"onlyIfNoTurn\":true}]}}"}
-{"ts":1787275088207,"run":1787275054108,"seq":200.23728813559322,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-ff3321e8-5c82-46e5-bbf3-c651b4ba4bb9-0\\nfc_ee73eece-0644-9814-8c6d-2b16d5262859_0\"},\"status\":\"completed\",\"resultText\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"\\\",\\\"stderr\\\":\\\"\\\"}\",\"aggregatedOutput\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"\\\",\\\"stderr\\\":\\\"\\\"}\",\"exitCode\":0,\"item\":{\"type\":\"command\",\"command\":\"sleep 2\",\"cwd\":\"\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"toolCallId\":\"call-ff3321e8-5c82-46e5-bbf3-c651b4ba4bb9-0\\nfc_ee73eece-0644-9814-8c6d-2b16d5262859_0\",\"status\":\"completed\",\"rawOutput\":{\"exitCode\":0,\"stdout\":\"\",\"stderr\":\"\"},\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
+{"ts":1787275088207,"run":1787275054108,"seq":200.23728813559322,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-ff3321e8-5c82-46e5-bbf3-c651b4ba4bb9-0\\nfc_ee73eece-0644-9814-8c6d-2b16d5262859_0\"},\"status\":\"completed\",\"resultText\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"\\\",\\\"stderr\\\":\\\"\\\"}\",\"aggregatedOutput\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"\\\",\\\"stderr\\\":\\\"\\\"}\",\"exitCode\":0,\"item\":{\"type\":\"command\",\"command\":\"sleep 2\",\"cwd\":\"\"},\"presentation\":{\"label\":{\"pending\":\"Running command\",\"completed\":\"Ran command\"},\"icon\":{\"glyph\":\"Terminal\"},\"title\":\"sleep 2\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"toolCallId\":\"call-ff3321e8-5c82-46e5-bbf3-c651b4ba4bb9-0\\nfc_ee73eece-0644-9814-8c6d-2b16d5262859_0\",\"status\":\"completed\",\"rawOutput\":{\"exitCode\":0,\"stdout\":\"\",\"stderr\":\"\"},\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
 {"ts":1787275088208,"run":1787275054108,"seq":200.25423728813558,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"Continuing the countdown\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"Continuing the countdown\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
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@@ -39,19 +39,19 @@
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 {"ts":1787275088233,"run":1787275054108,"seq":200.67796610169492,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"unhandled\",\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"toolCallId\":\"call-4bdc88d8-400f-4b68-92e2-af049da180de-3\\nfc_e154bea6-168b-9a85-b3f2-bd9c45cf0a8d_0\",\"status\":\"in_progress\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\",\"vouchedTurn\":false,\"onlyIfNoTurn\":true}]}}"}
 {"ts":1787275112829,"run":1787275054108,"seq":289.0169491525424,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"id\":29,\"result\":{\"threadId\":\"thr_ewk7j7h9nm\"}}"}
 {"ts":1787275112830,"run":1787275054108,"seq":289.03389830508473,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"input.accepted\",\"clientRequestId\":\"creq_j3k54qn79p\"}]}}"}
 {"ts":1787275112831,"run":1787275054108,"seq":289.0508474576271,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"Stopping the count. \",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"Stopping the count. \"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787275112832,"run":1787275054108,"seq":289.06779661016947,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"I'll check the current\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"I'll check the current\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787275112833,"run":1787275054108,"seq":289.08474576271186,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" git branch name.\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" git branch name.\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
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 {"ts":1787275112835,"run":1787275054108,"seq":289.1186440677966,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"unhandled\",\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"toolCallId\":\"call-61a90c29-cc56-4ab5-9c9d-63f52e558fa0-4\\nfc_b891b806-ad81-95c5-a77c-b5e1a7ff7e9c_0\",\"status\":\"in_progress\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\",\"vouchedTurn\":false,\"onlyIfNoTurn\":true}]}}"}
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 {"ts":1787275112837,"run":1787275054108,"seq":289.1525423728813,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"The current git branch\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"The current git branch\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787275112838,"run":1787275054108,"seq":289.1694915254237,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" is main.\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" is main.\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787275112839,"run":1787275054108,"seq":289.1864406779661,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\"`\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\"`\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787275112840,"run":1787275054108,"seq":289.20338983050846,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\"main\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\"main\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787275112841,"run":1787275054108,"seq":289.22033898305085,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\"`\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_ewk7j7h9nm\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\"`\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
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diff --git "a/packages/provider-bridge-protocol/recordings/acp-cursor/stop-interrupt/bridge\342\206\222runtime.current.ndjson" "b/packages/provider-bridge-protocol/recordings/acp-cursor/stop-interrupt/bridge\342\206\222runtime.current.ndjson"
index 43a358a743..f74a5816a0 100644
--- "a/packages/provider-bridge-protocol/recordings/acp-cursor/stop-interrupt/bridge\342\206\222runtime.current.ndjson"
+++ "b/packages/provider-bridge-protocol/recordings/acp-cursor/stop-interrupt/bridge\342\206\222runtime.current.ndjson"
@@ -24,9 +24,9 @@
 {"ts":1787275144580,"run":1787275054108,"seq":329.5,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_4aq5qrgfz5\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\" to\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_4aq5qrgfz5\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\" to\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787275144581,"run":1787275054108,"seq":329.5238095238095,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_4aq5qrgfz5\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\" finish\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_4aq5qrgfz5\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\" finish\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
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 {"ts":1787275144584,"run":1787275054108,"seq":329.5952380952381,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_4aq5qrgfz5\",\"deltas\":[{\"kind\":\"unhandled\",\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_4aq5qrgfz5\",\"update\":{\"toolCallId\":\"call-9540102b-c07a-4b9c-8749-5998f6909bdc-0\\nfc_ecdb86c2-2873-9509-943b-313713ccfc49_0\",\"status\":\"in_progress\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\",\"vouchedTurn\":false,\"onlyIfNoTurn\":true}]}}"}
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 {"ts":1787275178950,"run":1787275054108,"seq":382.04761904761904,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"id\":43,\"result\":{\"ok\":true}}"}
 {"ts":1787275188094,"run":1787275054108,"seq":387.0238095238095,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/identity\",\"params\":{\"threadId\":\"thr_4aq5qrgfz5\",\"providerThreadId\":\"fe1aa1e5-970c-47cd-b242-741ad3799257\",\"sessionRestorable\":true}}"}
 {"ts":1787275188095,"run":1787275054108,"seq":387.04761904761904,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_4aq5qrgfz5\",\"deltas\":[{\"kind\":\"session.reset\"}]}}"}
diff --git "a/packages/provider-bridge-protocol/recordings/acp-cursor/subagent/bridge\342\206\222runtime.current.ndjson" "b/packages/provider-bridge-protocol/recordings/acp-cursor/subagent/bridge\342\206\222runtime.current.ndjson"
index be3c78fcfb..772dbe36e5 100644
--- "a/packages/provider-bridge-protocol/recordings/acp-cursor/subagent/bridge\342\206\222runtime.current.ndjson"
+++ "b/packages/provider-bridge-protocol/recordings/acp-cursor/subagent/bridge\342\206\222runtime.current.ndjson"
@@ -27,9 +27,9 @@
 {"ts":1787277338855,"run":1787275054108,"seq":2887.4897959183672,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\" first\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\" first\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787277338856,"run":1787275054108,"seq":2887.5102040816328,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\" line\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\" line\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
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+{"ts":1787277338858,"run":1787275054108,"seq":2887.5510204081634,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-7f06d24a-022e-4cfe-8245-7d76f8142514-0\\nfc_11e4cbde-3413-9e91-81a0-8df209b57b4d_0\"},\"item\":{\"type\":\"tool\",\"tool\":\"other\"},\"presentation\":{\"label\":{\"pending\":\"Running tool\",\"completed\":\"Ran tool\"},\"icon\":{\"glyph\":\"Toolbox\"},\"title\":\"Task: Subagent task\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"update\":{\"toolCallId\":\"call-7f06d24a-022e-4cfe-8245-7d76f8142514-0\\nfc_11e4cbde-3413-9e91-81a0-8df209b57b4d_0\",\"title\":\"Task: Subagent task\",\"kind\":\"other\",\"status\":\"pending\",\"rawInput\":{\"_toolName\":\"task\"},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
 {"ts":1787277338859,"run":1787275054108,"seq":2887.5714285714284,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"deltas\":[{\"kind\":\"unhandled\",\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"update\":{\"toolCallId\":\"call-7f06d24a-022e-4cfe-8245-7d76f8142514-0\\nfc_11e4cbde-3413-9e91-81a0-8df209b57b4d_0\",\"status\":\"in_progress\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\",\"vouchedTurn\":false,\"onlyIfNoTurn\":true}]}}"}
-{"ts":1787277338860,"run":1787275054108,"seq":2887.591836734694,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-7f06d24a-022e-4cfe-8245-7d76f8142514-0\\nfc_11e4cbde-3413-9e91-81a0-8df209b57b4d_0\"},\"status\":\"completed\",\"resultText\":\"{\\\"durationMs\\\":4764,\\\"isBackground\\\":false}\",\"aggregatedOutput\":\"{\\\"durationMs\\\":4764,\\\"isBackground\\\":false}\",\"exitCode\":0,\"item\":{\"type\":\"tool\",\"tool\":\"Task: Subagent task\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"update\":{\"toolCallId\":\"call-7f06d24a-022e-4cfe-8245-7d76f8142514-0\\nfc_11e4cbde-3413-9e91-81a0-8df209b57b4d_0\",\"status\":\"completed\",\"rawOutput\":{\"durationMs\":4764,\"isBackground\":false},\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
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 {"ts":1787277338861,"run":1787275054108,"seq":2887.612244897959,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"The subagent reported\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"The subagent reported\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787277338862,"run":1787275054108,"seq":2887.6326530612246,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" the first line of README.md\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" the first line of README.md\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787277338863,"run":1787275054108,"seq":2887.6530612244896,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" as \\\"# Recording workspace\\\".\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_s3sef2qkmj\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" as \\\"# Recording workspace\\\".\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
diff --git "a/packages/provider-bridge-protocol/recordings/acp-cursor/turn-tools/bridge\342\206\222runtime.current.ndjson" "b/packages/provider-bridge-protocol/recordings/acp-cursor/turn-tools/bridge\342\206\222runtime.current.ndjson"
index 2ecfcddad6..b8b6ed4df1 100644
--- "a/packages/provider-bridge-protocol/recordings/acp-cursor/turn-tools/bridge\342\206\222runtime.current.ndjson"
+++ "b/packages/provider-bridge-protocol/recordings/acp-cursor/turn-tools/bridge\342\206\222runtime.current.ndjson"
@@ -36,9 +36,9 @@
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 {"ts":1787275058924,"run":1787275054108,"seq":13.376344086021506,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_qmfe7i44bn\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\".\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_qmfe7i44bn\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\".\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
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 {"ts":1787275058969,"run":1787275054108,"seq":13.86021505376344,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_qmfe7i44bn\",\"deltas\":[{\"kind\":\"unhandled\",\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_qmfe7i44bn\",\"update\":{\"toolCallId\":\"call-5ac4a3d3-566f-4280-954c-6b5ee83724c5-2\\nfc_d905c34e-3bf8-960a-a3e1-5d9513433efe_0\",\"status\":\"in_progress\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\",\"vouchedTurn\":false,\"onlyIfNoTurn\":true}]}}"}
-{"ts":1787275058970,"run":1787275054108,"seq":13.870967741935484,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_qmfe7i44bn\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-5ac4a3d3-566f-4280-954c-6b5ee83724c5-2\\nfc_d905c34e-3bf8-960a-a3e1-5d9513433efe_0\"},\"status\":\"completed\",\"resultText\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"2\\\\n\\\",\\\"stderr\\\":\\\"\\\"}\",\"aggregatedOutput\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"2\\\\n\\\",\\\"stderr\\\":\\\"\\\"}\",\"exitCode\":0,\"item\":{\"type\":\"command\",\"command\":\"node -e \\\"import(\\\\\\\"./math.js\\\\\\\").then(m => console.log(m.subtract(5, 3)))\\\"\",\"cwd\":\"\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_qmfe7i44bn\",\"update\":{\"toolCallId\":\"call-5ac4a3d3-566f-4280-954c-6b5ee83724c5-2\\nfc_d905c34e-3bf8-960a-a3e1-5d9513433efe_0\",\"status\":\"completed\",\"rawOutput\":{\"exitCode\":0,\"stdout\":\"2\\n\",\"stderr\":\"\"},\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
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 {"ts":1787275058971,"run":1787275054108,"seq":13.881720430107526,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_qmfe7i44bn\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"The user wants only \",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_qmfe7i44bn\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"The user wants only \"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787275058972,"run":1787275054108,"seq":13.89247311827957,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_qmfe7i44bn\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"the printed number as\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_qmfe7i44bn\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"the printed number as\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787275058973,"run":1787275054108,"seq":13.903225806451612,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_qmfe7i44bn\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" the response.\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_qmfe7i44bn\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" the response.\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
diff --git "a/packages/provider-bridge-protocol/recordings/acp-cursor/user-question/bridge\342\206\222runtime.current.ndjson" "b/packages/provider-bridge-protocol/recordings/acp-cursor/user-question/bridge\342\206\222runtime.current.ndjson"
index 1f6566434b..deb79cbdc0 100644
--- "a/packages/provider-bridge-protocol/recordings/acp-cursor/user-question/bridge\342\206\222runtime.current.ndjson"
+++ "b/packages/provider-bridge-protocol/recordings/acp-cursor/user-question/bridge\342\206\222runtime.current.ndjson"
@@ -15,9 +15,9 @@
 {"ts":1787277305081,"run":1787275054108,"seq":2834.48,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\" question\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\" question\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787277305082,"run":1787275054108,"seq":2834.52,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\" tool\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\" tool\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787277305083,"run":1787275054108,"seq":2834.56,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\".\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\".\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
-{"ts":1787277305084,"run":1787275054108,"seq":2834.6,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-d206acd1-b37e-4f1b-9e8f-812c3b733a1a-0\\nfc_167d5c62-0e6a-992f-a4d5-c657eb039669_0\"},\"item\":{\"type\":\"tool\",\"tool\":\"MCP: tool\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"update\":{\"toolCallId\":\"call-d206acd1-b37e-4f1b-9e8f-812c3b733a1a-0\\nfc_167d5c62-0e6a-992f-a4d5-c657eb039669_0\",\"title\":\"MCP: tool\",\"kind\":\"other\",\"status\":\"pending\",\"rawInput\":{},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
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 {"ts":1787277305085,"run":1787275054108,"seq":2834.64,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"deltas\":[{\"kind\":\"unhandled\",\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"update\":{\"toolCallId\":\"call-d206acd1-b37e-4f1b-9e8f-812c3b733a1a-0\\nfc_167d5c62-0e6a-992f-a4d5-c657eb039669_0\",\"status\":\"in_progress\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\",\"vouchedTurn\":false,\"onlyIfNoTurn\":true}]}}"}
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 {"ts":1787277305087,"run":1787275054108,"seq":2834.72,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"The user chose spaces.\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"The user chose spaces.\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787277305088,"run":1787275054108,"seq":2834.76,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\"spaces\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\"spaces\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787277305089,"run":1787275054108,"seq":2834.8,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_mtkg4tpja2\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"turn.boundary\",\"status\":\"completed\",\"claimIfIdle\":true}]}}"}
diff --git "a/packages/provider-bridge-protocol/recordings/acp-cursor/web-search/bridge\342\206\222runtime.current.ndjson" "b/packages/provider-bridge-protocol/recordings/acp-cursor/web-search/bridge\342\206\222runtime.current.ndjson"
index a2dd0bd2c1..c7f16ca70e 100644
--- "a/packages/provider-bridge-protocol/recordings/acp-cursor/web-search/bridge\342\206\222runtime.current.ndjson"
+++ "b/packages/provider-bridge-protocol/recordings/acp-cursor/web-search/bridge\342\206\222runtime.current.ndjson"
@@ -20,15 +20,15 @@
 {"ts":1787279450076,"run":1787275054108,"seq":3042.3541666666665,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\" version\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\" version\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787279450077,"run":1787275054108,"seq":3042.375,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\" now\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\" now\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
 {"ts":1787279450078,"run":1787275054108,"seq":3042.3958333333335,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\",\"text\":\".\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_message_chunk\",\"content\":{\"type\":\"text\",\"text\":\".\"}}}},\"rawType\":\"acp/update:agent_message_chunk\"}}]}}"}
-{"ts":1787279450079,"run":1787275054108,"seq":3042.4166666666665,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-df17d2c1-0ae2-4902-b7d9-d9f5fafcb584-0\\nfc_f325efb9-072f-9321-92db-5f2b8a0544b4_0\"},\"item\":{\"type\":\"tool\",\"tool\":\"Web Fetch\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-df17d2c1-0ae2-4902-b7d9-d9f5fafcb584-0\\nfc_f325efb9-072f-9321-92db-5f2b8a0544b4_0\",\"title\":\"Web Fetch\",\"kind\":\"fetch\",\"status\":\"pending\",\"rawInput\":{},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
+{"ts":1787279450079,"run":1787275054108,"seq":3042.4166666666665,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-df17d2c1-0ae2-4902-b7d9-d9f5fafcb584-0\\nfc_f325efb9-072f-9321-92db-5f2b8a0544b4_0\"},\"item\":{\"type\":\"tool\",\"tool\":\"fetch\"},\"presentation\":{\"label\":{\"pending\":\"Fetching\",\"completed\":\"Fetched\"},\"icon\":{\"glyph\":\"Globe\"},\"title\":\"Web Fetch\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-df17d2c1-0ae2-4902-b7d9-d9f5fafcb584-0\\nfc_f325efb9-072f-9321-92db-5f2b8a0544b4_0\",\"title\":\"Web Fetch\",\"kind\":\"fetch\",\"status\":\"pending\",\"rawInput\":{},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
 {"ts":1787279450080,"run":1787275054108,"seq":3042.4375,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"unhandled\",\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-df17d2c1-0ae2-4902-b7d9-d9f5fafcb584-0\\nfc_f325efb9-072f-9321-92db-5f2b8a0544b4_0\",\"status\":\"in_progress\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\",\"vouchedTurn\":false,\"onlyIfNoTurn\":true}]}}"}
-{"ts":1787279450081,"run":1787275054108,"seq":3042.4583333333335,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-df17d2c1-0ae2-4902-b7d9-d9f5fafcb584-0\\nfc_f325efb9-072f-9321-92db-5f2b8a0544b4_0\"},\"status\":\"completed\",\"resultText\":\"{\\\"success\\\":true}\",\"aggregatedOutput\":\"{\\\"success\\\":true}\",\"exitCode\":0,\"item\":{\"type\":\"tool\",\"tool\":\"Web Fetch\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-df17d2c1-0ae2-4902-b7d9-d9f5fafcb584-0\\nfc_f325efb9-072f-9321-92db-5f2b8a0544b4_0\",\"status\":\"completed\",\"rawOutput\":{\"success\":true},\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
+{"ts":1787279450081,"run":1787275054108,"seq":3042.4583333333335,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-df17d2c1-0ae2-4902-b7d9-d9f5fafcb584-0\\nfc_f325efb9-072f-9321-92db-5f2b8a0544b4_0\"},\"status\":\"completed\",\"resultText\":\"{\\\"success\\\":true}\",\"aggregatedOutput\":\"{\\\"success\\\":true}\",\"exitCode\":0,\"item\":{\"type\":\"tool\",\"tool\":\"fetch\"},\"presentation\":{\"label\":{\"pending\":\"Fetching\",\"completed\":\"Fetched\"},\"icon\":{\"glyph\":\"Globe\"},\"title\":\"Web Fetch\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-df17d2c1-0ae2-4902-b7d9-d9f5fafcb584-0\\nfc_f325efb9-072f-9321-92db-5f2b8a0544b4_0\",\"status\":\"completed\",\"rawOutput\":{\"success\":true},\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
 {"ts":1787279450082,"run":1787275054108,"seq":3042.4791666666665,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"Searching the large \",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"Searching the large \"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787279450083,"run":1787275054108,"seq":3042.5,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"Node.js dist index JSON\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"Node.js dist index JSON\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787279450084,"run":1787275054108,"seq":3042.5208333333335,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" for the first LTS entry.\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" for the first LTS entry.\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
-{"ts":1787279450085,"run":1787275054108,"seq":3042.5416666666665,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-bc741959-7315-4773-a17a-af885441035e-1\\nfc_c4ef7eca-6868-9ce0-8ff5-35b0b628c9b1_0\"},\"item\":{\"type\":\"command\",\"command\":\"node -e \\\"const d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"\",\"cwd\":\"\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-bc741959-7315-4773-a17a-af885441035e-1\\nfc_c4ef7eca-6868-9ce0-8ff5-35b0b628c9b1_0\",\"title\":\"`node -e \\\"const d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"`\",\"kind\":\"execute\",\"status\":\"pending\",\"rawInput\":{\"command\":\"node -e \\\"const d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"\"},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
+{"ts":1787279450085,"run":1787275054108,"seq":3042.5416666666665,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-bc741959-7315-4773-a17a-af885441035e-1\\nfc_c4ef7eca-6868-9ce0-8ff5-35b0b628c9b1_0\"},\"item\":{\"type\":\"command\",\"command\":\"node -e \\\"const d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"\",\"cwd\":\"\"},\"presentation\":{\"label\":{\"pending\":\"Running command\",\"completed\":\"Ran command\"},\"icon\":{\"glyph\":\"Terminal\"},\"title\":\"node -e \\\"const d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); con…\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-bc741959-7315-4773-a17a-af885441035e-1\\nfc_c4ef7eca-6868-9ce0-8ff5-35b0b628c9b1_0\",\"title\":\"`node -e \\\"const d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"`\",\"kind\":\"execute\",\"status\":\"pending\",\"rawInput\":{\"command\":\"node -e \\\"const d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"\"},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
 {"ts":1787279450086,"run":1787275054108,"seq":3042.5625,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"unhandled\",\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-bc741959-7315-4773-a17a-af885441035e-1\\nfc_c4ef7eca-6868-9ce0-8ff5-35b0b628c9b1_0\",\"status\":\"in_progress\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\",\"vouchedTurn\":false,\"onlyIfNoTurn\":true}]}}"}
-{"ts":1787279450087,"run":1787275054108,"seq":3042.5833333333335,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-bc741959-7315-4773-a17a-af885441035e-1\\nfc_c4ef7eca-6868-9ce0-8ff5-35b0b628c9b1_0\"},\"status\":\"completed\",\"resultText\":\"{\\\"exitCode\\\":1,\\\"stdout\\\":\\\"\\\",\\\"stderr\\\":\\\"[eval]:1\\\\nconst d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\\n                                                                                                                                     ^\\\\n\\\\nTypeError: d.find is not a function\\\\n    at [eval]:1:134\\\\n    at runScriptInThisContext (node:internal/vm:219:10)\\\\n    at node:internal/process/execution:451:12\\\\n    at [eval]-wrapper:6:24\\\\n    at runScriptInContext (node:internal/process/execution:449:60)\\\\n    at evalFunction (node:internal/process/execution:283:30)\\\\n    at evalTypeScript (node:internal/process/execution:295:3)\\\\n    at node:internal/main/eval_string:71:3\\\\n\\\\nNode.js v24.5.0\\\\n\\\"}\",\"aggregatedOutput\":\"{\\\"exitCode\\\":1,\\\"stdout\\\":\\\"\\\",\\\"stderr\\\":\\\"[eval]:1\\\\nconst d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\\n                                                                                                                                     ^\\\\n\\\\nTypeError: d.find is not a function\\\\n    at [eval]:1:134\\\\n    at runScriptInThisContext (node:internal/vm:219:10)\\\\n    at node:internal/process/execution:451:12\\\\n    at [eval]-wrapper:6:24\\\\n    at runScriptInContext (node:internal/process/execution:449:60)\\\\n    at evalFunction (node:internal/process/execution:283:30)\\\\n    at evalTypeScript (node:internal/process/execution:295:3)\\\\n    at node:internal/main/eval_string:71:3\\\\n\\\\nNode.js v24.5.0\\\\n\\\"}\",\"exitCode\":0,\"item\":{\"type\":\"command\",\"command\":\"node -e \\\"const d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"\",\"cwd\":\"\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-bc741959-7315-4773-a17a-af885441035e-1\\nfc_c4ef7eca-6868-9ce0-8ff5-35b0b628c9b1_0\",\"status\":\"completed\",\"rawOutput\":{\"exitCode\":1,\"stdout\":\"\",\"stderr\":\"[eval]:1\\nconst d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\n                                                                                                                                     ^\\n\\nTypeError: d.find is not a function\\n    at [eval]:1:134\\n    at runScriptInThisContext (node:internal/vm:219:10)\\n    at node:internal/process/execution:451:12\\n    at [eval]-wrapper:6:24\\n    at runScriptInContext (node:internal/process/execution:449:60)\\n    at evalFunction (node:internal/process/execution:283:30)\\n    at evalTypeScript (node:internal/process/execution:295:3)\\n    at node:internal/main/eval_string:71:3\\n\\nNode.js v24.5.0\\n\"},\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
+{"ts":1787279450087,"run":1787275054108,"seq":3042.5833333333335,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-bc741959-7315-4773-a17a-af885441035e-1\\nfc_c4ef7eca-6868-9ce0-8ff5-35b0b628c9b1_0\"},\"status\":\"completed\",\"resultText\":\"{\\\"exitCode\\\":1,\\\"stdout\\\":\\\"\\\",\\\"stderr\\\":\\\"[eval]:1\\\\nconst d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\\n                                                                                                                                     ^\\\\n\\\\nTypeError: d.find is not a function\\\\n    at [eval]:1:134\\\\n    at runScriptInThisContext (node:internal/vm:219:10)\\\\n    at node:internal/process/execution:451:12\\\\n    at [eval]-wrapper:6:24\\\\n    at runScriptInContext (node:internal/process/execution:449:60)\\\\n    at evalFunction (node:internal/process/execution:283:30)\\\\n    at evalTypeScript (node:internal/process/execution:295:3)\\\\n    at node:internal/main/eval_string:71:3\\\\n\\\\nNode.js v24.5.0\\\\n\\\"}\",\"aggregatedOutput\":\"{\\\"exitCode\\\":1,\\\"stdout\\\":\\\"\\\",\\\"stderr\\\":\\\"[eval]:1\\\\nconst d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\\n                                                                                                                                     ^\\\\n\\\\nTypeError: d.find is not a function\\\\n    at [eval]:1:134\\\\n    at runScriptInThisContext (node:internal/vm:219:10)\\\\n    at node:internal/process/execution:451:12\\\\n    at [eval]-wrapper:6:24\\\\n    at runScriptInContext (node:internal/process/execution:449:60)\\\\n    at evalFunction (node:internal/process/execution:283:30)\\\\n    at evalTypeScript (node:internal/process/execution:295:3)\\\\n    at node:internal/main/eval_string:71:3\\\\n\\\\nNode.js v24.5.0\\\\n\\\"}\",\"exitCode\":0,\"item\":{\"type\":\"command\",\"command\":\"node -e \\\"const d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"\",\"cwd\":\"\"},\"presentation\":{\"label\":{\"pending\":\"Running command\",\"completed\":\"Ran command\"},\"icon\":{\"glyph\":\"Terminal\"},\"title\":\"node -e \\\"const d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); con…\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-bc741959-7315-4773-a17a-af885441035e-1\\nfc_c4ef7eca-6868-9ce0-8ff5-35b0b628c9b1_0\",\"status\":\"completed\",\"rawOutput\":{\"exitCode\":1,\"stdout\":\"\",\"stderr\":\"[eval]:1\\nconst d=require('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt'); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\n                                                                                                                                     ^\\n\\nTypeError: d.find is not a function\\n    at [eval]:1:134\\n    at runScriptInThisContext (node:internal/vm:219:10)\\n    at node:internal/process/execution:451:12\\n    at [eval]-wrapper:6:24\\n    at runScriptInContext (node:internal/process/execution:449:60)\\n    at evalFunction (node:internal/process/execution:283:30)\\n    at evalTypeScript (node:internal/process/execution:295:3)\\n    at node:internal/main/eval_string:71:3\\n\\nNode.js v24.5.0\\n\"},\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
 {"ts":1787279450088,"run":1787275054108,"seq":3042.6041666666665,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"A require call may have\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"A require call may have\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787279450089,"run":1787275054108,"seq":3042.625,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" failed.\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" failed.\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787279450090,"run":1787275054108,"seq":3042.6458333333335,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"\\n\\nThe require call failed\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"\\n\\nThe require call failed\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
@@ -36,9 +36,9 @@
 {"ts":1787279450092,"run":1787275054108,"seq":3042.6875,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" I'll use JSON.parse\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" I'll use JSON.parse\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787279450093,"run":1787275054108,"seq":3042.7083333333335,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" with fs.readFileSync\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" with fs.readFileSync\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787279450094,"run":1787275054108,"seq":3042.7291666666665,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" instead.\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" instead.\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
-{"ts":1787279450095,"run":1787275054108,"seq":3042.75,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-c1d94fd9-506b-479f-8c61-4f7002d3f25c-2\\nfc_10972f4d-b748-9351-88bf-06f652eb2164_0\"},\"item\":{\"type\":\"command\",\"command\":\"node -e \\\"const fs=require('fs'); const d=JSON.parse(fs.readFileSync('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt','utf8')); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"\",\"cwd\":\"\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-c1d94fd9-506b-479f-8c61-4f7002d3f25c-2\\nfc_10972f4d-b748-9351-88bf-06f652eb2164_0\",\"title\":\"`node -e \\\"const fs=require('fs'); const d=JSON.parse(fs.readFileSync('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt','utf8')); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"`\",\"kind\":\"execute\",\"status\":\"pending\",\"rawInput\":{\"command\":\"node -e \\\"const fs=require('fs'); const d=JSON.parse(fs.readFileSync('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt','utf8')); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"\"},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
+{"ts":1787279450095,"run":1787275054108,"seq":3042.75,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\"},{\"kind\":\"item.textClose\",\"key\":{\"channel\":\"assistant\"},\"channel\":\"agentMessage\"},{\"kind\":\"item.open\",\"key\":{\"providerItemId\":\"call-c1d94fd9-506b-479f-8c61-4f7002d3f25c-2\\nfc_10972f4d-b748-9351-88bf-06f652eb2164_0\"},\"item\":{\"type\":\"command\",\"command\":\"node -e \\\"const fs=require('fs'); const d=JSON.parse(fs.readFileSync('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt','utf8')); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"\",\"cwd\":\"\"},\"presentation\":{\"label\":{\"pending\":\"Running command\",\"completed\":\"Ran command\"},\"icon\":{\"glyph\":\"Terminal\"},\"title\":\"node -e \\\"const fs=require('fs'); const d=JSON.parse(fs.readFileSync('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb…\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-c1d94fd9-506b-479f-8c61-4f7002d3f25c-2\\nfc_10972f4d-b748-9351-88bf-06f652eb2164_0\",\"title\":\"`node -e \\\"const fs=require('fs'); const d=JSON.parse(fs.readFileSync('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt','utf8')); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"`\",\"kind\":\"execute\",\"status\":\"pending\",\"rawInput\":{\"command\":\"node -e \\\"const fs=require('fs'); const d=JSON.parse(fs.readFileSync('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt','utf8')); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"\"},\"sessionUpdate\":\"tool_call\"}}},\"rawType\":\"acp/update:tool_call\"}}]}}"}
 {"ts":1787279450096,"run":1787275054108,"seq":3042.7708333333335,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"unhandled\",\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-c1d94fd9-506b-479f-8c61-4f7002d3f25c-2\\nfc_10972f4d-b748-9351-88bf-06f652eb2164_0\",\"status\":\"in_progress\",\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\",\"vouchedTurn\":false,\"onlyIfNoTurn\":true}]}}"}
-{"ts":1787279450097,"run":1787275054108,"seq":3042.7916666666665,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-c1d94fd9-506b-479f-8c61-4f7002d3f25c-2\\nfc_10972f4d-b748-9351-88bf-06f652eb2164_0\"},\"status\":\"completed\",\"resultText\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"v24.19.0 Krypton\\\\n24\\\\n\\\",\\\"stderr\\\":\\\"\\\"}\",\"aggregatedOutput\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"v24.19.0 Krypton\\\\n24\\\\n\\\",\\\"stderr\\\":\\\"\\\"}\",\"exitCode\":0,\"item\":{\"type\":\"command\",\"command\":\"node -e \\\"const fs=require('fs'); const d=JSON.parse(fs.readFileSync('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt','utf8')); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"\",\"cwd\":\"\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-c1d94fd9-506b-479f-8c61-4f7002d3f25c-2\\nfc_10972f4d-b748-9351-88bf-06f652eb2164_0\",\"status\":\"completed\",\"rawOutput\":{\"exitCode\":0,\"stdout\":\"v24.19.0 Krypton\\n24\\n\",\"stderr\":\"\"},\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
+{"ts":1787279450097,"run":1787275054108,"seq":3042.7916666666665,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.close\",\"key\":{\"providerItemId\":\"call-c1d94fd9-506b-479f-8c61-4f7002d3f25c-2\\nfc_10972f4d-b748-9351-88bf-06f652eb2164_0\"},\"status\":\"completed\",\"resultText\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"v24.19.0 Krypton\\\\n24\\\\n\\\",\\\"stderr\\\":\\\"\\\"}\",\"aggregatedOutput\":\"{\\\"exitCode\\\":0,\\\"stdout\\\":\\\"v24.19.0 Krypton\\\\n24\\\\n\\\",\\\"stderr\\\":\\\"\\\"}\",\"exitCode\":0,\"item\":{\"type\":\"command\",\"command\":\"node -e \\\"const fs=require('fs'); const d=JSON.parse(fs.readFileSync('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb316e86.txt','utf8')); const e=d.find(x=>x.lts); console.log(e.version, e.lts); console.log(parseInt(e.version.slice(1),10));\\\"\",\"cwd\":\"\"},\"presentation\":{\"label\":{\"pending\":\"Running command\",\"completed\":\"Ran command\"},\"icon\":{\"glyph\":\"Terminal\"},\"title\":\"node -e \\\"const fs=require('fs'); const d=JSON.parse(fs.readFileSync('/home/user/.cursor/projects/tmp-bb-recording-ws/agent-tools/b03c7cf9-d36a-480a-a5c4-1d07cb…\"},\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"toolCallId\":\"call-c1d94fd9-506b-479f-8c61-4f7002d3f25c-2\\nfc_10972f4d-b748-9351-88bf-06f652eb2164_0\",\"status\":\"completed\",\"rawOutput\":{\"exitCode\":0,\"stdout\":\"v24.19.0 Krypton\\n24\\n\",\"stderr\":\"\"},\"sessionUpdate\":\"tool_call_update\"}}},\"rawType\":\"acp/update:tool_call_update\"}}]}}"}
 {"ts":1787279450098,"run":1787275054108,"seq":3042.8125,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"The current Node.js \",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"The current Node.js \"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787279450099,"run":1787275054108,"seq":3042.8333333333335,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\"LTS major version is\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\"LTS major version is\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
 {"ts":1787279450100,"run":1787275054108,"seq":3042.8541666666665,"dir":"bridge→runtime","line":"{\"jsonrpc\":\"2.0\",\"method\":\"thread/delta\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"deltas\":[{\"kind\":\"item.textDelta\",\"key\":{\"channel\":\"thought\"},\"channel\":\"reasoningText\",\"text\":\" 24.\",\"noTurnFallback\":{\"raw\":{\"jsonrpc\":\"2.0\",\"method\":\"acp/update\",\"params\":{\"threadId\":\"thr_3ezpniyutg\",\"update\":{\"sessionUpdate\":\"agent_thought_chunk\",\"content\":{\"type\":\"text\",\"text\":\" 24.\"}}}},\"rawType\":\"acp/update:agent_thought_chunk\"}}]}}"}
diff --git a/packages/provider-bridge-protocol/recordings/parity-allowlist.json b/packages/provider-bridge-protocol/recordings/parity-allowlist.json
index 1684e8477d..a089421700 100644
--- a/packages/provider-bridge-protocol/recordings/parity-allowlist.json
+++ b/packages/provider-bridge-protocol/recordings/parity-allowlist.json
@@ -422,5 +422,141 @@
     "path": "/0/children/0/subagentType",
     "pr": "#2178",
     "reason": "The delegation item carries no sub-agent type field; the type rides the presentation detail (\"Explore agent\") until the presentation-driven projection renders it."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "approval-allow",
+    "layer": "events",
+    "path": "/*/item/presentation",
+    "pr": "#2179",
+    "reason": "Grammar v3: the ACP bridge attaches a presentation (label/icon/title) to every item.open/item.close and the assembler persists it; the field is new, the items are otherwise byte-identical."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "approval-deny",
+    "layer": "events",
+    "path": "/*/item/presentation",
+    "pr": "#2179",
+    "reason": "Grammar v3: the ACP bridge attaches a presentation (label/icon/title) to every item.open/item.close and the assembler persists it; the field is new, the items are otherwise byte-identical."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "steer",
+    "layer": "events",
+    "path": "/*/item/presentation",
+    "pr": "#2179",
+    "reason": "Grammar v3: the ACP bridge attaches a presentation (label/icon/title) to every item.open/item.close and the assembler persists it; the field is new, the items are otherwise byte-identical."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "stop-interrupt",
+    "layer": "events",
+    "path": "/*/item/presentation",
+    "pr": "#2179",
+    "reason": "Grammar v3: the ACP bridge attaches a presentation (label/icon/title) to every item.open/item.close and the assembler persists it; the field is new, the items are otherwise byte-identical."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "subagent",
+    "layer": "events",
+    "path": "/*/item/presentation",
+    "pr": "#2179",
+    "reason": "Grammar v3: the ACP bridge attaches a presentation (label/icon/title) to every item.open/item.close and the assembler persists it; the field is new, the items are otherwise byte-identical."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "turn-tools",
+    "layer": "events",
+    "path": "/*/item/presentation",
+    "pr": "#2179",
+    "reason": "Grammar v3: the ACP bridge attaches a presentation (label/icon/title) to every item.open/item.close and the assembler persists it; the field is new, the items are otherwise byte-identical."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "user-question",
+    "layer": "events",
+    "path": "/*/item/presentation",
+    "pr": "#2179",
+    "reason": "Grammar v3: the ACP bridge attaches a presentation (label/icon/title) to every item.open/item.close and the assembler persists it; the field is new, the items are otherwise byte-identical."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "web-search",
+    "layer": "events",
+    "path": "/*/item/presentation",
+    "pr": "#2179",
+    "reason": "Grammar v3: the ACP bridge attaches a presentation (label/icon/title) to every item.open/item.close and the assembler persists it; the field is new, the items are otherwise byte-identical."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "subagent",
+    "layer": "events",
+    "path": "/*/item/tool",
+    "pr": "#2179",
+    "reason": "Grammar v3: an ACP tool call's `tool` slot names the native kind (`read`, `edit`, `fetch`, `other`) instead of the agent's human title (\"Read File\", \"Edit File\", \"Web Fetch\", \"MCP: tool\", \"Task: Subagent task\"), which now rides presentation.title. Cursor's read/fetch calls carry no path/URL, so these rows stay generic tools rather than fileRead/webFetch."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "turn-tools",
+    "layer": "events",
+    "path": "/*/item/tool",
+    "pr": "#2179",
+    "reason": "Grammar v3: an ACP tool call's `tool` slot names the native kind (`read`, `edit`, `fetch`, `other`) instead of the agent's human title (\"Read File\", \"Edit File\", \"Web Fetch\", \"MCP: tool\", \"Task: Subagent task\"), which now rides presentation.title. Cursor's read/fetch calls carry no path/URL, so these rows stay generic tools rather than fileRead/webFetch."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "user-question",
+    "layer": "events",
+    "path": "/*/item/tool",
+    "pr": "#2179",
+    "reason": "Grammar v3: an ACP tool call's `tool` slot names the native kind (`read`, `edit`, `fetch`, `other`) instead of the agent's human title (\"Read File\", \"Edit File\", \"Web Fetch\", \"MCP: tool\", \"Task: Subagent task\"), which now rides presentation.title. Cursor's read/fetch calls carry no path/URL, so these rows stay generic tools rather than fileRead/webFetch."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "web-search",
+    "layer": "events",
+    "path": "/*/item/tool",
+    "pr": "#2179",
+    "reason": "Grammar v3: an ACP tool call's `tool` slot names the native kind (`read`, `edit`, `fetch`, `other`) instead of the agent's human title (\"Read File\", \"Edit File\", \"Web Fetch\", \"MCP: tool\", \"Task: Subagent task\"), which now rides presentation.title. Cursor's read/fetch calls carry no path/URL, so these rows stay generic tools rather than fileRead/webFetch."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "subagent",
+    "layer": "rows",
+    "path": "/0/children/1/toolName",
+    "pr": "#2179",
+    "reason": "Projection of the same change: the legacy tool row's toolName is the item's `tool` slot, now the native kind rather than the agent's title (the title is in the persisted presentation, which the presentation-driven projection will read)."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "turn-tools",
+    "layer": "rows",
+    "path": "/0/children/1/toolName",
+    "pr": "#2179",
+    "reason": "Projection of the same change: the legacy tool row's toolName is the item's `tool` slot, now the native kind rather than the agent's title (the title is in the persisted presentation, which the presentation-driven projection will read)."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "user-question",
+    "layer": "rows",
+    "path": "/0/children/1/toolName",
+    "pr": "#2179",
+    "reason": "Projection of the same change: the legacy tool row's toolName is the item's `tool` slot, now the native kind rather than the agent's title (the title is in the persisted presentation, which the presentation-driven projection will read)."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "web-search",
+    "layer": "rows",
+    "path": "/0/children/1/toolName",
+    "pr": "#2179",
+    "reason": "Projection of the same change: the legacy tool row's toolName is the item's `tool` slot, now the native kind rather than the agent's title (the title is in the persisted presentation, which the presentation-driven projection will read)."
+  },
+  {
+    "provider": "acp-cursor",
+    "cell": "turn-tools",
+    "layer": "rows",
+    "path": "/0/children/3/toolName",
+    "pr": "#2179",
+    "reason": "Projection of the same change: the legacy tool row's toolName is the item's `tool` slot, now the native kind rather than the agent's title (the title is in the persisted presentation, which the presentation-driven projection will read)."
   }
 ]
diff --git a/packages/provider-bridge-protocol/src/assembler/delta-assembler.test.ts b/packages/provider-bridge-protocol/src/assembler/delta-assembler.test.ts
index 09e54ab33f..ab4961467c 100644
--- a/packages/provider-bridge-protocol/src/assembler/delta-assembler.test.ts
+++ b/packages/provider-bridge-protocol/src/assembler/delta-assembler.test.ts
@@ -812,48 +812,6 @@ describe("delta assembler", () => {
     ).toEqual([expect.objectContaining({ scope: turnScope(turnId) })]);
   });
 
-  it("emits turn/plan/updated for the open turn and falls back when idle", () => {
-    const assembler = createAssembler();
-    const raw = {
-      jsonrpc: "2.0" as const,
-      method: "acp/update",
-      params: { update: { sessionUpdate: "plan" } },
-    };
-    expect(
-      assemble(assembler, {
-        kind: "turn.plan",
-        steps: [{ step: "Fix bug", status: "active" }],
-        noTurnFallback: { raw, rawType: "acp/update:plan" },
-      }),
-    ).toEqual([
-      expect.objectContaining({
-        type: "provider/unhandled",
-        rawType: "acp/update:plan",
-        scope: threadScope(),
-      }),
-    ]);
-    assemble(assembler, { kind: "turn.open" });
-    const turnId = assembler.getOpenTurnId(THREAD_ID) ?? "";
-    expect(
-      assemble(assembler, {
-        kind: "turn.plan",
-        steps: [
-          { step: "Read files", status: "completed" },
-          { step: "Fix bug", status: "active" },
-        ],
-      }),
-    ).toEqual([
-      expect.objectContaining({
-        type: "turn/plan/updated",
-        scope: turnScope(turnId),
-        plan: [
-          { step: "Read files", status: "completed" },
-          { step: "Fix bug", status: "active" },
-        ],
-      }),
-    ]);
-  });
-
   // -- turnless item/stream deltas --------------------------------------------
 
   it("never fabricates a turn for turnless item deltas: fallback surfaces, no fallback drops", () => {
diff --git a/packages/provider-bridge-protocol/src/assembler/delta-assembler.ts b/packages/provider-bridge-protocol/src/assembler/delta-assembler.ts
index 401e2ed41d..a98b43644c 100644
--- a/packages/provider-bridge-protocol/src/assembler/delta-assembler.ts
+++ b/packages/provider-bridge-protocol/src/assembler/delta-assembler.ts
@@ -1746,28 +1746,6 @@ export function createDeltaAssembler(
         return;
       }
 
-      case "turn.plan": {
-        const turnId =
-          delta.providerTurnId !== undefined
-            ? resolveVouchedTurnId(state, delta.providerTurnId)
-            : state.currentTurnId;
-        if (turnId === undefined) {
-          pushNoTurnFallback(state, delta.noTurnFallback, undefined, events);
-          return;
-        }
-        events.push({
-          type: "turn/plan/updated",
-          threadId: UNSTAMPED_THREAD_ID,
-          providerThreadId: "",
-          scope: turnScope(turnId),
-          plan: delta.steps,
-          ...(delta.explanation === undefined
-            ? {}
-            : { explanation: delta.explanation }),
-        });
-        return;
-      }
-
       case "item.progress": {
         const keyStr = itemKeyString(delta.key);
         const open = state.openItemsByKey.get(keyStr);
diff --git a/packages/provider-bridge-protocol/src/contract-tests/grammar-version.test.ts b/packages/provider-bridge-protocol/src/contract-tests/grammar-version.test.ts
index 471d118bf0..df3e46d391 100644
--- a/packages/provider-bridge-protocol/src/contract-tests/grammar-version.test.ts
+++ b/packages/provider-bridge-protocol/src/contract-tests/grammar-version.test.ts
@@ -15,7 +15,8 @@
  * does not know — so the wire stays at 2 and the `grammarVersions` handshake
  * range is how a bridge says which vocabulary it speaks. Members only one
  * in-repo bridge ever spoke (`thread.goal`, the `thread/openWork`
- * notification) were dropped under that range once the bridge migrated; the
+ * notification, `turn.plan`) were dropped under that range once the bridge
+ * migrated; the
  * stabilization workstream that makes `presentation` required is the one
  * that tightens the parse for every bridge and must bump.
  *
diff --git a/packages/provider-bridge-protocol/src/contract-tests/provider-bridge-grammar.v2.snapshot.json b/packages/provider-bridge-protocol/src/contract-tests/provider-bridge-grammar.v2.snapshot.json
index 3546f7ddfd..fac107db1d 100644
--- a/packages/provider-bridge-protocol/src/contract-tests/provider-bridge-grammar.v2.snapshot.json
+++ b/packages/provider-bridge-protocol/src/contract-tests/provider-bridge-grammar.v2.snapshot.json
@@ -152,13 +152,6 @@
       "providerTurnId": "optional",
       "parentRef": "optional"
     },
-    "turn.plan": {
-      "kind": "required",
-      "steps": "required",
-      "explanation": "optional",
-      "providerTurnId": "optional",
-      "noTurnFallback": "optional"
-    },
     "unhandled": {
       "kind": "required",
       "raw": "required",
diff --git a/packages/provider-bridge-protocol/src/thread-delta.test.ts b/packages/provider-bridge-protocol/src/thread-delta.test.ts
index adcabcb9bb..c01536c2f4 100644
--- a/packages/provider-bridge-protocol/src/thread-delta.test.ts
+++ b/packages/provider-bridge-protocol/src/thread-delta.test.ts
@@ -23,10 +23,6 @@ describe("thread delta schemas", () => {
         exitCode: 0,
         item: { type: "command", command: "ls", cwd: "/repo" },
       },
-      {
-        kind: "turn.plan",
-        steps: [{ step: "Fix bug", status: "active" }],
-      },
       { kind: "item.progress", key: { providerItemId: "tc-1" }, message: "…" },
       {
         kind: "item.textDelta",
diff --git a/packages/provider-bridge-protocol/src/thread-delta.ts b/packages/provider-bridge-protocol/src/thread-delta.ts
index 7658690752..24ad261c48 100644
--- a/packages/provider-bridge-protocol/src/thread-delta.ts
+++ b/packages/provider-bridge-protocol/src/thread-delta.ts
@@ -225,10 +225,12 @@ export type DeltaDelegationShape = z.infer<typeof deltaDelegationShapeSchema>;
 
 /**
  * A structured plan snapshot as an item (grammar v3): codex `update_plan`
- * (295 production threads, discarded by the UI today because it only rides
- * the turn-level `turn.plan`) and Claude `TaskCreate`/`TaskUpdate`/`TodoWrite`.
- * Each snapshot carries the full step list and supersedes the previous one.
- * `turn.plan` stays for bridges that only know the turn-level form.
+ * (295 production threads, discarded by the UI while it only rode the
+ * turn-level `turn.plan`), ACP `plan` updates, and Claude
+ * `TaskCreate`/`TaskUpdate`/`TodoWrite`. Each snapshot carries the full step
+ * list and supersedes the previous one. The turn-level `turn.plan` delta is
+ * gone: every in-repo bridge speaks this form, and the persisted
+ * `turn/plan/updated` event type stays as read-only history.
  */
 export const deltaPlanStepsShapeSchema = z.object({
   type: z.literal("planSteps"),
@@ -495,18 +497,6 @@ export const threadDeltaSchema = z.discriminatedUnion("kind", [
     })
     .superRefine(requireExtensionPresentation),
 
-  /**
-   * The provider's plan for the open turn (ACP `plan` updates, codex
-   * `turn/plan/updated`). Mirrors `turn/plan/updated`.
-   */
-  z.object({
-    kind: z.literal("turn.plan"),
-    steps: z.array(threadEventPlanStepSchema),
-    explanation: z.string().optional(),
-    providerTurnId: providerTurnIdSchema.optional(),
-    noTurnFallback: deltaNoTurnFallbackSchema.optional(),
-  }),
-
   /**
    * Free-form progress on an open item (non-command tool updates), or — with
    * `snapshot` — a re-embedded snapshot of work that outlives its turn: a
diff --git a/plugins/provider-acp/src/bridge/bridge.ts b/plugins/provider-acp/src/bridge/bridge.ts
index 681061151e..77af5cda82 100644
--- a/plugins/provider-acp/src/bridge/bridge.ts
+++ b/plugins/provider-acp/src/bridge/bridge.ts
@@ -382,6 +382,9 @@ async function forwardDynamicToolCall(args: {
     return { ok: false, error: "No active ACP session for dynamic tool call." };
   }
 
+  // The agent's own tool_call for this MCP call is the timeline row; the
+  // translator binds it to the bb tool so the row reads as that tool (Q31).
+  session.translator.noteInjectedToolCall(session.bbThreadId, args.tool);
   try {
     const result = await sendRuntimeRequest("item/tool/call", {
       providerThreadId: session.providerThreadId,
@@ -1382,6 +1385,10 @@ function handlePermissionRequest(
           session.bbThreadId,
           toolCall.toolCallId,
         ),
+        injectedTool: session.translator.getInjectedToolBinding(
+          session.bbThreadId,
+          toolCall.toolCallId,
+        ),
       }
     : undefined;
 
@@ -1595,6 +1602,16 @@ async function startAgentSession(
   }
 
   const translator = createAcpDeltaTranslator();
+  // The session's bb-injected tools: a proxied call to one is a bb tool and
+  // reads the way its definition says (Q31).
+  translator.configureInjectedTools(
+    (params.dynamicTools ?? []).map((tool) => ({
+      name: tool.name,
+      ...(tool.presentation === undefined
+        ? {}
+        : { presentation: tool.presentation }),
+    })),
+  );
   // Ordering guarantee: thread/identity precedes any thread/delta for the
   // session, so pre-identity notifications are held and flushed after the
   // identity goes out.
diff --git a/plugins/provider-acp/src/delta-translation.test.ts b/plugins/provider-acp/src/delta-translation.test.ts
index 32d9ce4d19..6e4cb91995 100644
--- a/plugins/provider-acp/src/delta-translation.test.ts
+++ b/plugins/provider-acp/src/delta-translation.test.ts
@@ -12,7 +12,10 @@ import {
   ACP_UPDATE_METHOD,
   ACP_WARNING_METHOD,
 } from "./bridge-protocol.js";
-import { createAcpDeltaTranslator } from "./delta-translation.js";
+import {
+  createAcpDeltaTranslator,
+  type AcpDeltaTranslator,
+} from "./delta-translation.js";
 
 /**
  * ACP translation equivalence for the narrow-grammar path.
@@ -512,6 +515,11 @@ describe("acp delta translation (moved from the legacy adapter suite)", () => {
           cwd: "",
           status: "pending",
           approvalStatus: null,
+          presentation: {
+            label: { pending: "Running command", completed: "Ran command" },
+            icon: { glyph: "Terminal" },
+            title: "pnpm test",
+          },
         },
       },
     ]);
@@ -544,6 +552,11 @@ describe("acp delta translation (moved from the legacy adapter suite)", () => {
           approvalStatus: null,
           aggregatedOutput: "1 passed",
           exitCode: 0,
+          presentation: {
+            label: { pending: "Running command", completed: "Ran command" },
+            icon: { glyph: "Terminal" },
+            title: "pnpm test",
+          },
         },
       },
     ]);
@@ -649,6 +662,11 @@ describe("acp delta translation (moved from the legacy adapter suite)", () => {
           changes: [{ path: "/workspace/a.ts", kind: "update" }],
           status: "pending",
           approvalStatus: null,
+          presentation: {
+            label: { pending: "Editing file", completed: "Edited file" },
+            icon: { glyph: "EditFile" },
+            title: "a.ts",
+          },
         },
       },
     ]);
@@ -690,32 +708,56 @@ describe("acp delta translation (moved from the legacy adapter suite)", () => {
     expect(countChangedLines(change?.diff)).toEqual({ added: 1, removed: 1 });
   });
 
-  it("translates plan updates", () => {
+  it("translates plan updates into settled planSteps snapshots", () => {
     const harness = startedHarness();
-    expect(
-      harness.translate(
-        updateEvent({
-          sessionUpdate: "plan",
-          entries: [
-            { content: "Read files", status: "completed" },
-            { content: "Fix bug", status: "in_progress" },
-            { content: "Run tests", status: "pending" },
-          ],
-        }),
-      ),
-    ).toEqual([
+    const first = harness.translate(
+      updateEvent({
+        sessionUpdate: "plan",
+        entries: [
+          { content: "Read files", status: "completed" },
+          { content: "Fix bug", status: "in_progress" },
+          { content: "Run tests", status: "pending" },
+        ],
+      }),
+    );
+    expect(first).toEqual([
       {
-        type: "turn/plan/updated",
+        type: "item/completed",
         threadId: "",
         providerThreadId: "",
         scope: turnScope(harness.openTurnId()),
-        plan: [
-          { step: "Read files", status: "completed" },
-          { step: "Fix bug", status: "active" },
-          { step: "Run tests", status: "pending" },
-        ],
+        item: {
+          type: "planSteps",
+          id: expect.stringMatching(ITEM_ID_PATTERN),
+          steps: [
+            { step: "Read files", status: "completed" },
+            { step: "Fix bug", status: "active" },
+            { step: "Run tests", status: "pending" },
+          ],
+          status: "completed",
+          presentation: {
+            label: { pending: "Updating plan", completed: "Updated plan" },
+            icon: { glyph: "ListTodo" },
+            suppress: true,
+            title: "Fix bug",
+          },
+        },
       },
     ]);
+    // Each snapshot is its own item; the latest supersedes the rest.
+    const second = completedItems(
+      harness.translate(
+        updateEvent({
+          sessionUpdate: "plan",
+          entries: [{ content: "Run tests", status: "in_progress" }],
+        }),
+      ),
+    );
+    expect(second).toHaveLength(1);
+    expect(second[0]?.id).not.toBe(completedItems(first)[0]?.id);
+    expect(first.some((event) => event.type === "turn/plan/updated")).toBe(
+      false,
+    );
   });
 
   it("translates bridge warnings", () => {
@@ -822,3 +864,493 @@ describe("acp delta translation (moved from the legacy adapter suite)", () => {
     ]);
   });
 });
+
+/**
+ * Grammar v3: every item the bridge opens or closes carries its presentation
+ * (docs/provider-plugin-api.md §3), asserted on the deltas themselves so a
+ * new lifecycle site cannot ship without one.
+ */
+describe("acp delta translation (presentation)", () => {
+  function itemDeltas(
+    deltas: ReturnType<AcpDeltaTranslator["translateAcpEvent"]>,
+  ) {
+    return deltas.filter(
+      (delta) => delta.kind === "item.open" || delta.kind === "item.close",
+    );
+  }
+
+  it("attaches a presentation to every item.open and item.close", () => {
+    const translator = createAcpDeltaTranslator();
+    const context = { threadId: THREAD_ID };
+    const translate = (event: ProviderRuntimeEvent) =>
+      translator.translateAcpEvent(event, context);
+
+    translate(turnStartedEvent());
+    const lifecycle = [
+      ...translate(
+        updateEvent({
+          sessionUpdate: "tool_call",
+          toolCallId: "call-exec",
+          title: "`pnpm test`",
+          kind: "execute",
+          status: "pending",
+          rawInput: { command: "pnpm test" },
+        }),
+      ),
+      ...translate(
+        updateEvent({
+          sessionUpdate: "tool_call",
+          toolCallId: "call-read",
+          title: "Read File",
+          kind: "read",
+          status: "in_progress",
+        }),
+      ),
+      ...translate(
+        updateEvent({
+          sessionUpdate: "tool_call",
+          toolCallId: "call-mcp",
+          title: "MCP: tool",
+          kind: "other",
+          status: "completed",
+        }),
+      ),
+      ...translate(
+        updateEvent({
+          sessionUpdate: "tool_call_update",
+          toolCallId: "call-exec",
+          status: "completed",
+        }),
+      ),
+      ...translate(fsWriteEvent("/tmp/new.ts")),
+      // Turn end settles the still-open read.
+      ...translate(turnCompletedEvent("end_turn")),
+      ...translate({
+        jsonrpc: "2.0",
+        method: ACP_COMPACTION_STARTED_METHOD,
+        params: { threadId: THREAD_ID },
+      }),
+    ];
+
+    const items = itemDeltas(lifecycle);
+    expect(items.map((delta) => delta.kind)).toEqual([
+      "item.open",
+      "item.open",
+      "item.close",
+      "item.close",
+      "item.close",
+      "item.close",
+      "item.open",
+    ]);
+    for (const delta of items) {
+      expect(delta.presentation).toBeDefined();
+    }
+    expect(items.map((delta) => delta.presentation)).toEqual([
+      {
+        label: { pending: "Running command", completed: "Ran command" },
+        icon: { glyph: "Terminal" },
+        title: "pnpm test",
+      },
+      {
+        label: { pending: "Reading file", completed: "Read file" },
+        icon: { glyph: "FileText" },
+        title: "Read File",
+      },
+      {
+        label: { pending: "Running tool", completed: "Ran tool" },
+        icon: { glyph: "Toolbox" },
+        title: "MCP: tool",
+      },
+      {
+        label: { pending: "Running command", completed: "Ran command" },
+        icon: { glyph: "Terminal" },
+        title: "pnpm test",
+      },
+      {
+        label: { pending: "Writing file", completed: "Wrote file" },
+        icon: { glyph: "EditFile" },
+        title: "new.ts",
+      },
+      {
+        label: { pending: "Reading file", completed: "Read file" },
+        icon: { glyph: "FileText" },
+        title: "Read File",
+      },
+      {
+        label: {
+          pending: "Compacting context",
+          completed: "Compacted context",
+        },
+        icon: { glyph: "Archive" },
+      },
+    ]);
+  });
+
+  it("strips the agent's code ticks from a command headline and names deleted files", () => {
+    const translator = createAcpDeltaTranslator();
+    const context = { threadId: THREAD_ID };
+    translator.translateAcpEvent(turnStartedEvent(), context);
+    const [command] = itemDeltas(
+      translator.translateAcpEvent(
+        updateEvent({
+          sessionUpdate: "tool_call",
+          toolCallId: "call-title",
+          title: "`touch approved.txt`",
+          kind: "execute",
+          status: "pending",
+        }),
+        context,
+      ),
+    );
+    expect(command?.presentation?.title).toBe("touch approved.txt");
+
+    const [deletion] = itemDeltas(
+      translator.translateAcpEvent(
+        updateEvent({
+          sessionUpdate: "tool_call",
+          toolCallId: "call-delete",
+          title: "Delete old.ts",
+          kind: "delete",
+          status: "completed",
+          locations: [{ path: "/workspace/old.ts" }],
+        }),
+        context,
+      ),
+    );
+    expect(deletion?.presentation).toEqual({
+      label: { pending: "Deleting file", completed: "Deleted file" },
+      icon: { glyph: "Trash2" },
+      title: "old.ts",
+    });
+  });
+});
+
+/**
+ * The native kind enum maps straight onto the core kinds; the agent's title
+ * is the headline, never the tool name. A kind whose core shape the agent
+ * left unfilled stays a generic tool presenting as its kind.
+ */
+describe("acp delta translation (native kinds → core kinds)", () => {
+  function openItem(update: Record<string, unknown>) {
+    const harness = createHarness();
+    harness.translate(turnStartedEvent());
+    const events = harness.translate(
+      updateEvent({ sessionUpdate: "tool_call", status: "pending", ...update }),
+    );
+    const started = events.find((event) => event.type === "item/started");
+    if (started?.type !== "item/started") {
+      throw new Error(
+        `Expected an item/started, got ${JSON.stringify(events)}`,
+      );
+    }
+    return started.item;
+  }
+
+  it("maps a read with a location to fileRead", () => {
+    expect(
+      openItem({
+        toolCallId: "read-1",
+        title: "Read File",
+        kind: "read",
+        locations: [{ path: "/workspace/src/a.ts", line: 3 }],
+      }),
+    ).toMatchObject({
+      type: "fileRead",
+      path: "/workspace/src/a.ts",
+      presentation: {
+        label: { pending: "Reading file", completed: "Read file" },
+        icon: { glyph: "FileText" },
+        title: "a.ts",
+      },
+    });
+  });
+
+  it("recovers the read path from a single code-ticked title token", () => {
+    expect(
+      openItem({
+        toolCallId: "read-2",
+        title: "Read `/home/user/project/README.md`",
+        kind: "read",
+        rawInput: {},
+      }),
+    ).toMatchObject({ type: "fileRead", path: "/home/user/project/README.md" });
+  });
+
+  it("keeps a read with no path a generic tool that presents as a read", () => {
+    expect(
+      openItem({
+        toolCallId: "read-3",
+        title: "Read File",
+        kind: "read",
+        rawInput: {},
+      }),
+    ).toEqual(
+      expect.objectContaining({
+        type: "toolCall",
+        tool: "read",
+        presentation: {
+          label: { pending: "Reading file", completed: "Read file" },
+          icon: { glyph: "FileText" },
+          title: "Read File",
+        },
+      }),
+    );
+  });
+
+  it("maps a fetch to webFetch when the URL is known", () => {
+    expect(
+      openItem({
+        toolCallId: "fetch-1",
+        title: "Fetch: https://example.com/docs",
+        kind: "fetch",
+      }),
+    ).toMatchObject({
+      type: "webFetch",
+      url: "https://example.com/docs",
+      pattern: null,
+      presentation: {
+        label: { pending: "Fetching page", completed: "Fetched page" },
+        title: "https://example.com/docs",
+      },
+    });
+    expect(
+      openItem({ toolCallId: "fetch-2", title: "Web Fetch", kind: "fetch" }),
+    ).toMatchObject({
+      type: "toolCall",
+      tool: "fetch",
+      presentation: { label: { pending: "Fetching" }, title: "Web Fetch" },
+    });
+  });
+
+  it("maps a search with a query to the search kind", () => {
+    expect(
+      openItem({
+        toolCallId: "search-1",
+        title: "Grep",
+        kind: "search",
+        rawInput: { pattern: "TODO", path: "/workspace/src" },
+      }),
+    ).toMatchObject({
+      type: "search",
+      mode: "content",
+      query: "TODO",
+      path: "/workspace/src",
+      presentation: { label: { completed: "Searched files" }, title: "TODO" },
+    });
+    expect(
+      openItem({
+        toolCallId: "search-2",
+        title: "Find",
+        kind: "search",
+        rawInput: { glob: "**/*.test.ts" },
+      }),
+    ).toMatchObject({ type: "search", mode: "path", query: "**/*.test.ts" });
+    expect(
+      openItem({ toolCallId: "search-3", title: "Find", kind: "search" }),
+    ).toMatchObject({ type: "toolCall", tool: "search" });
+  });
+
+  it("maps a think call to a reasoning item with its thought", () => {
+    const harness = createHarness();
+    harness.translate(turnStartedEvent());
+    harness.translate(
+      updateEvent({
+        sessionUpdate: "tool_call",
+        toolCallId: "think-1",
+        title: "Thinking",
+        kind: "think",
+        status: "in_progress",
+      }),
+    );
+    const [settled] = completedItems(
+      harness.translate(
+        updateEvent({
+          sessionUpdate: "tool_call_update",
+          toolCallId: "think-1",
+          status: "completed",
+          content: [
+            {
+              type: "content",
+              content: { type: "text", text: "Plan: A then B" },
+            },
+          ],
+        }),
+      ),
+    );
+    expect(settled).toMatchObject({
+      type: "reasoning",
+      summary: [],
+      content: ["Plan: A then B"],
+      presentation: { label: { pending: "Thinking", completed: "Thought" } },
+    });
+  });
+
+  it("names a generic call by its kind and keeps the title as the headline", () => {
+    expect(
+      openItem({ toolCallId: "other-1", title: "MCP: tool", kind: "other" }),
+    ).toEqual(
+      expect.objectContaining({
+        type: "toolCall",
+        tool: "other",
+        presentation: {
+          label: { pending: "Running tool", completed: "Ran tool" },
+          icon: { glyph: "Toolbox" },
+          title: "MCP: tool",
+        },
+      }),
+    );
+    expect(
+      openItem({ toolCallId: "other-2", title: "Task: Subagent task" }),
+    ).toMatchObject({ type: "toolCall", tool: "tool" });
+  });
+});
+
+/**
+ * Q31: a call to a bb-injected tool reads as that tool (`server: "bb"`, the
+ * definition's presentation). ACP gives the bridge no id linking the MCP
+ * proxy's call to the agent's own tool_call, so the binding is positional.
+ */
+describe("acp delta translation (bb-injected tools)", () => {
+  const ASK_PRESENTATION = {
+    label: { pending: "Asking a question", completed: "Asked a question" },
+    icon: { glyph: "MessageQuestion" },
+    suppress: true,
+  };
+
+  function injectedHarness() {
+    const harness = createHarness();
+    const translator = createAcpDeltaTranslator();
+    translator.configureInjectedTools([
+      { name: "ask_user_question", presentation: ASK_PRESENTATION },
+      { name: "bb_workflow_run" },
+    ]);
+    const assembler = harness.assembler;
+    const translate = (event: ProviderRuntimeEvent) =>
+      assembler.assemble({
+        threadId: THREAD_ID,
+        deltas: translator.translateAcpEvent(event, { threadId: THREAD_ID }),
+      });
+    translate(turnStartedEvent());
+    return { translate, translator };
+  }
+
+  it("binds the agent's announced MCP call when the proxy forwards the bb tool call", () => {
+    const { translate, translator } = injectedHarness();
+    // Cursor's order: the generic announcement first, then the MCP request
+    // reaches the proxy, then the agent settles its call.
+    const [started] = translate(
+      updateEvent({
+        sessionUpdate: "tool_call",
+        toolCallId: "mcp-1",
+        title: "MCP: tool",
+        kind: "other",
+        status: "pending",
+      }),
+    );
+    expect(started).toMatchObject({
+      type: "item/started",
+      item: { type: "toolCall", tool: "other" },
+    });
+
+    translator.noteInjectedToolCall(THREAD_ID, "ask_user_question");
+
+    const [completed] = completedItems(
+      translate(
+        updateEvent({
+          sessionUpdate: "tool_call_update",
+          toolCallId: "mcp-1",
+          status: "completed",
+        }),
+      ),
+    );
+    expect(completed).toMatchObject({
+      type: "toolCall",
+      server: "bb",
+      tool: "ask_user_question",
+      status: "completed",
+      presentation: ASK_PRESENTATION,
+    });
+  });
+
+  it("holds a proxied call until the agent announces it, and presents an unknown definition generically", () => {
+    const { translate, translator } = injectedHarness();
+    translator.noteInjectedToolCall(THREAD_ID, "bb_workflow_run");
+    translator.noteInjectedToolCall(THREAD_ID, "not_configured");
+
+    const first = completedItems(
+      translate(
+        updateEvent({
+          sessionUpdate: "tool_call",
+          toolCallId: "mcp-2",
+          title: "tool",
+          status: "completed",
+        }),
+      ),
+    );
+    expect(first[0]).toMatchObject({
+      type: "toolCall",
+      server: "bb",
+      tool: "bb_workflow_run",
+      presentation: {
+        label: {
+          pending: "Running bb_workflow_run",
+          completed: "Ran bb_workflow_run",
+        },
+        icon: { glyph: "Toolbox" },
+      },
+    });
+    const second = completedItems(
+      translate(
+        updateEvent({
+          sessionUpdate: "tool_call",
+          toolCallId: "mcp-3",
+          title: "tool",
+          kind: "other",
+          status: "completed",
+        }),
+      ),
+    );
+    expect(second[0]).toMatchObject({
+      type: "toolCall",
+      server: "bb",
+      tool: "not_configured",
+    });
+  });
+
+  it("binds by name when the title names the tool, and never binds a command", () => {
+    const { translate, translator } = injectedHarness();
+    translate(
+      updateEvent({
+        sessionUpdate: "tool_call",
+        toolCallId: "exec-1",
+        title: "`sleep 1`",
+        kind: "execute",
+        status: "pending",
+        rawInput: { command: "sleep 1" },
+      }),
+    );
+    const [named] = translate(
+      updateEvent({
+        sessionUpdate: "tool_call",
+        toolCallId: "mcp-4",
+        title: "ask_user_question (bb-bridge MCP Server)",
+        kind: "other",
+        status: "pending",
+      }),
+    );
+    expect(named).toMatchObject({
+      type: "item/started",
+      item: { type: "toolCall", server: "bb", tool: "ask_user_question" },
+    });
+
+    // A proxied call with only a command open waits; it never rebinds the
+    // command or the already-bound question.
+    translator.noteInjectedToolCall(THREAD_ID, "bb_workflow_run");
+    const settled = completedItems(translate(turnCompletedEvent("end_turn")));
+    expect(settled.map((item) => item.type)).toEqual([
+      "commandExecution",
+      "toolCall",
+    ]);
+    expect(settled[1]).toMatchObject({ tool: "ask_user_question" });
+  });
+});
diff --git a/plugins/provider-acp/src/delta-translation.ts b/plugins/provider-acp/src/delta-translation.ts
index 44d285c6c5..050d7f0b06 100644
--- a/plugins/provider-acp/src/delta-translation.ts
+++ b/plugins/provider-acp/src/delta-translation.ts
@@ -17,17 +17,13 @@
 
 import {
   errorEnvelopeSchema,
-  extractResultText,
   jsonRpcEnvelopeSchema,
   providerRawEventSchema,
-  toOptionalString,
   type JsonRpcMessage,
   type ProviderRawEvent,
   type ProviderRuntimeEvent,
 } from "@get-bb/plugin-sdk/provider-bridge";
 import type {
-  DeltaFileChange,
-  DeltaItemShape,
   DeltaNoTurnFallback,
   ThreadDelta,
   ThreadEventItemStatus,
@@ -50,9 +46,17 @@ import {
   acpWarningNotificationParamsSchema,
 } from "./bridge-protocol.js";
 import {
-  classifyAcpToolCall as classifyAcpToolCallOperation,
-  type AcpToolCallOperation,
-} from "./tool-call-operation.js";
+  COMPACTION_PRESENTATION,
+  fileChangePresentation,
+  planStepsPresentation,
+} from "./presentation.js";
+import {
+  classifyAcpToolCall,
+  extractAcpToolCallOutputText,
+  isInjectedToolCandidate,
+  type AcpClassifiedToolCall,
+  type AcpInjectedTool,
+} from "./tool-classification.js";
 import { acpVisibilityMetadata } from "./visibility.js";
 import {
   acpAgentMessageChunkUpdateSchema,
@@ -76,94 +80,19 @@ interface AcpDeltaTranslationContext {
 
 const ASSISTANT_STREAM_KEY = "assistant";
 const THOUGHT_STREAM_KEY = "thought";
-const INLINE_IMAGE_DATA_URL_PATTERN =
-  /data:image\/[a-z0-9.+-]+(?:;[^,]*)?;base64,[a-z0-9+/_=-]+/giu;
-
 const ACP_PLAN_STEP_STATUS_BY_ENTRY_STATUS = {
   pending: "pending",
   in_progress: "active",
   completed: "completed",
 } as const;
 
+/** Each ACP plan snapshot is its own settled item; the latest supersedes. */
+const PLAN_STEPS_CHANNEL = "planSteps";
+
 // ---------------------------------------------------------------------------
 // Pure ACP parsing helpers
 // ---------------------------------------------------------------------------
 
-function extractAcpToolCallOutputText(
-  event: AcpToolCallUpdateEvent,
-): string | undefined {
-  const chunks: string[] = [];
-  for (const entry of event.content ?? []) {
-    if (entry.type !== "content") {
-      continue;
-    }
-    const text = extractAcpContentText(entry.content);
-    if (text) {
-      chunks.push(text);
-    }
-  }
-  if (chunks.length > 0) {
-    return chunks.join("\n");
-  }
-  if (event.rawOutput === undefined) {
-    return undefined;
-  }
-  // Some ACP agents echo MCP image results as data-URL attachments in
-  // rawOutput. Keep the useful envelope, but do not persist or render the
-  // potentially multi-megabyte payload in the thread timeline.
-  const rawOutputText = extractResultText(event.rawOutput)
-    .replace(INLINE_IMAGE_DATA_URL_PATTERN, "[image]")
-    .trim();
-  return rawOutputText.length > 0 ? rawOutputText : undefined;
-}
-
-function buildAcpFileChanges(
-  event: AcpToolCallUpdateEvent,
-  operation: Extract<AcpToolCallOperation, { kind: "file_change" }>,
-): DeltaFileChange[] {
-  const changes: DeltaFileChange[] = [];
-  for (const entry of event.content ?? []) {
-    if (entry.type !== "diff") {
-      continue;
-    }
-    const oldText = entry.oldText ?? undefined;
-    changes.push({
-      path: entry.path,
-      kind: oldText === undefined ? "add" : "update",
-      ...(oldText === undefined ? {} : { oldText }),
-      newText: entry.newText,
-    });
-  }
-  if (changes.length > 0) {
-    return changes;
-  }
-  const [path] = operation.paths;
-  return path === undefined ? [] : [{ path, kind: operation.changeKind }];
-}
-
-/**
- * Classify a (merged) tool_call event into its parsed item shape. The
- * command/file-change/generic decision is the shared classifier's — the
- * permission mapping (`interactions.ts`) uses the same one, so an approval
- * row and its timeline item can never disagree (#1803).
- */
-function classifyAcpToolCall(event: AcpToolCallUpdateEvent): DeltaItemShape {
-  const operation = classifyAcpToolCallOperation(event);
-  if (operation.kind === "command") {
-    return { type: "command", command: operation.command, cwd: "" };
-  }
-  if (operation.kind === "file_change") {
-    const changes = buildAcpFileChanges(event, operation);
-    if (changes.length > 0) {
-      return { type: "fileChange", changes };
-    }
-  }
-  return {
-    type: "tool",
-    tool: toOptionalString(event.title) ?? event.kind ?? "tool",
-  };
-}
-
 function isTerminalAcpStatus(
   status: AcpToolCallUpdateEvent["status"],
 ): boolean {
@@ -219,6 +148,19 @@ export function createAcpDeltaTranslator() {
    */
   const mergedToolCalls = new Map<string, AcpToolCallUpdateEvent>();
 
+  /**
+   * The bb-injected tools of the session, by name. One translator lives per
+   * session, so the set is session-wide.
+   */
+  let injectedToolsByName = new Map<string, AcpInjectedTool>();
+  /** The bb tool each unsettled call is bound to, by call key. */
+  const injectedToolBindings = new Map<string, AcpInjectedTool>();
+  /**
+   * bb tool calls the MCP proxy forwarded before the agent announced a
+   * matching tool_call, per thread, oldest first.
+   */
+  const pendingInjectedCalls = new Map<string, AcpInjectedTool[]>();
+
   function callKey(
     context: AcpDeltaTranslationContext | undefined,
     toolCallId: string,
@@ -240,7 +182,90 @@ export function createAcpDeltaTranslator() {
   ): void {
     for (const [key] of threadCallEntries(context)) {
       mergedToolCalls.delete(key);
+      injectedToolBindings.delete(key);
+    }
+    pendingInjectedCalls.delete(context?.threadId ?? "");
+  }
+
+  // -------------------------------------------------------------------------
+  // bb-injected tools (Q31)
+  // -------------------------------------------------------------------------
+
+  function configureInjectedTools(tools: readonly AcpInjectedTool[]): void {
+    injectedToolsByName = new Map(tools.map((tool) => [tool.name, tool]));
+  }
+
+  /** The injected tool a call's title names outright, if any. */
+  function injectedToolNamedBy(
+    event: AcpToolCallUpdateEvent,
+  ): AcpInjectedTool | undefined {
+    const title = event.title;
+    if (title === undefined || injectedToolsByName.size === 0) {
+      return undefined;
+    }
+    for (const tool of injectedToolsByName.values()) {
+      if (title.includes(tool.name)) {
+        return tool;
+      }
+    }
+    return undefined;
+  }
+
+  /**
+   * Bind a freshly announced tool_call to a bb tool: the one its title names,
+   * else the oldest proxied call still waiting for its announcement.
+   */
+  function bindAnnouncedCall(
+    context: AcpDeltaTranslationContext | undefined,
+    event: AcpToolCallUpdateEvent,
+  ): AcpInjectedTool | undefined {
+    if (!isInjectedToolCandidate(event)) {
+      return undefined;
     }
+    const named = injectedToolNamedBy(event);
+    if (named !== undefined) {
+      return named;
+    }
+    return pendingInjectedCalls.get(context?.threadId ?? "")?.shift();
+  }
+
+  /**
+   * The MCP proxy forwarded a call to bb tool `tool` for this thread. ACP
+   * gives the bridge no id that links the proxied call to the agent's own
+   * tool_call (Cursor announces every MCP call as "MCP: tool", kind `other`),
+   * so the binding is positional: the unbound candidate whose title names the
+   * tool, else the unbound candidate that mentions MCP, else the oldest
+   * unbound candidate — agents announce parallel calls in the order they run
+   * them. With no candidate open, the call waits for the next announcement.
+   */
+  function noteInjectedToolCall(threadId: string, toolName: string): void {
+    const tool = injectedToolsByName.get(toolName) ?? { name: toolName };
+    const candidates = threadCallEntries({ threadId }).filter(
+      ([key, event]) =>
+        !injectedToolBindings.has(key) && isInjectedToolCandidate(event),
+    );
+    const chosen =
+      candidates.find(([, event]) => event.title?.includes(tool.name)) ??
+      candidates.find(([, event]) => /\bmcp\b/i.test(event.title ?? "")) ??
+      candidates[0];
+    if (chosen !== undefined) {
+      injectedToolBindings.set(chosen[0], tool);
+      return;
+    }
+    const queue = pendingInjectedCalls.get(threadId) ?? [];
+    queue.push(tool);
+    pendingInjectedCalls.set(threadId, queue);
+  }
+
+  /** Classify a call with its bb-tool binding, if it has one. */
+  function classifyCall(
+    context: AcpDeltaTranslationContext | undefined,
+    event: AcpToolCallUpdateEvent,
+  ): AcpClassifiedToolCall {
+    return classifyAcpToolCall(
+      event,
+      injectedToolBindings.get(callKey(context, event.toolCallId)),
+    );
   }
 
   // -------------------------------------------------------------------------
@@ -345,6 +370,7 @@ export function createAcpDeltaTranslator() {
   // -------------------------------------------------------------------------
 
   interface AcpCloseArgs {
+    context: AcpDeltaTranslationContext | undefined;
     event: AcpToolCallUpdateEvent;
     status: ThreadEventItemStatus;
     noTurnFallback?: DeltaNoTurnFallback;
@@ -359,6 +385,8 @@ export function createAcpDeltaTranslator() {
   function toolCallClose(args: AcpCloseArgs): ThreadDelta {
     const outputText = extractAcpToolCallOutputText(args.event);
     const terminal = args.status === "completed" || args.status === "failed";
+    const classified = classifyCall(args.context, args.event);
+    injectedToolBindings.delete(callKey(args.context, args.event.toolCallId));
     return {
       kind: "item.close",
       key: {
@@ -369,7 +397,8 @@ export function createAcpDeltaTranslator() {
         ? {}
         : { resultText: outputText, aggregatedOutput: outputText }),
       ...(terminal ? { exitCode: args.status === "failed" ? 1 : 0 } : {}),
-      item: classifyAcpToolCall(args.event),
+      item: classified.item,
+      presentation: classified.presentation,
       ...(args.noTurnFallback ? { noTurnFallback: args.noTurnFallback } : {}),
     };
   }
@@ -384,6 +413,7 @@ export function createAcpDeltaTranslator() {
       mergedToolCalls.delete(key);
       deltas.push(
         toolCallClose({
+          context,
           event,
           status,
         }),
@@ -462,21 +492,25 @@ export function createAcpDeltaTranslator() {
         }
         // A tool call flushes both open streams before its item.
         const flush = [closeThoughtStream(), closeAssistantStream()];
+        const announcedKey = callKey(context, parsed.data.toolCallId);
+        const bound = bindAnnouncedCall(context, parsed.data);
+        if (bound !== undefined) {
+          injectedToolBindings.set(announcedKey, bound);
+        }
         if (isTerminalAcpStatus(parsed.data.status)) {
           // Arrived already settled: close-without-open, no cache entry.
           return [
             ...flush,
             toolCallClose({
+              context,
               event: parsed.data,
               status: mapAcpToolCallStatus(parsed.data.status),
               noTurnFallback: noTurnFallbackFor(rawEvent),
             }),
           ];
         }
-        mergedToolCalls.set(
-          callKey(context, parsed.data.toolCallId),
-          parsed.data,
-        );
+        mergedToolCalls.set(announcedKey, parsed.data);
+        const classified = classifyCall(context, parsed.data);
         return [
           ...flush,
           {
@@ -484,7 +518,8 @@ export function createAcpDeltaTranslator() {
             key: {
               providerItemId: parsed.data.toolCallId,
             },
-            item: classifyAcpToolCall(parsed.data),
+            item: classified.item,
+            presentation: classified.presentation,
             noTurnFallback: noTurnFallbackFor(rawEvent),
           },
         ];
@@ -504,6 +539,7 @@ export function createAcpDeltaTranslator() {
           mergedToolCalls.delete(key);
           return [
             toolCallClose({
+              context,
               event: merged,
               status: mapAcpToolCallStatus(merged.status),
               noTurnFallback: noTurnFallbackFor(rawEvent),
@@ -512,7 +548,14 @@ export function createAcpDeltaTranslator() {
         }
         mergedToolCalls.set(key, merged);
         const progressText = extractAcpToolCallOutputText(parsed.data);
-        if (progressText && classifyAcpToolCall(merged).type === "tool") {
+        // Commands and file changes settle with their output at the close;
+        // every other item streams its progress text.
+        const progressItemType = classifyCall(context, merged).item.type;
+        if (
+          progressText &&
+          progressItemType !== "command" &&
+          progressItemType !== "fileChange"
+        ) {
           return [
             {
               kind: "item.progress",
@@ -532,6 +575,9 @@ export function createAcpDeltaTranslator() {
         if (!parsed.success) {
           return suppressedUnhandled(rawEvent);
         }
+        // An ACP plan update carries the whole entry list, so each one is a
+        // settled `planSteps` snapshot (grammar v3): a channel-keyed close
+        // mints a fresh item per snapshot and the latest supersedes the rest.
         const steps: ThreadEventPlanStep[] = parsed.data.entries.map(
           (entry) => ({
             step: entry.content,
@@ -542,8 +588,11 @@ export function createAcpDeltaTranslator() {
         );
         return [
           {
-            kind: "turn.plan",
-            steps,
+            kind: "item.close",
+            key: { channel: PLAN_STEPS_CHANNEL },
+            status: "completed",
+            item: { type: "planSteps", steps },
+            presentation: planStepsPresentation(steps),
             noTurnFallback: noTurnFallbackFor(rawEvent),
           },
         ];
@@ -675,6 +724,7 @@ export function createAcpDeltaTranslator() {
             kind: "item.open",
             key: { channel: "compaction" },
             item: { type: "compaction" },
+            presentation: COMPACTION_PRESENTATION,
           },
         ];
       }
@@ -744,6 +794,10 @@ export function createAcpDeltaTranslator() {
                 },
               ],
             },
+            presentation: fileChangePresentation({
+              verb: params.data.kind,
+              paths: [params.data.path],
+            }),
             noTurnFallback: noTurnFallbackFor(rawEvent),
           },
         ];
@@ -788,7 +842,21 @@ export function createAcpDeltaTranslator() {
     return mergedToolCalls.get(callKey({ threadId }, toolCallId));
   }
 
-  return { getMergedToolCall, translateAcpEvent };
+  /** The bb tool an unsettled call is bound to (Q31), for its permission. */
+  function getInjectedToolBinding(
+    threadId: string,
+    toolCallId: string,
+  ): AcpInjectedTool | undefined {
+    return injectedToolBindings.get(callKey({ threadId }, toolCallId));
+  }
+
+  return {
+    configureInjectedTools,
+    getInjectedToolBinding,
+    getMergedToolCall,
+    noteInjectedToolCall,
+    translateAcpEvent,
+  };
 }
 
 export type AcpDeltaTranslator = ReturnType<typeof createAcpDeltaTranslator>;
diff --git a/plugins/provider-acp/src/interactions.test.ts b/plugins/provider-acp/src/interactions.test.ts
index 72176fca14..910a683d85 100644
--- a/plugins/provider-acp/src/interactions.test.ts
+++ b/plugins/provider-acp/src/interactions.test.ts
@@ -11,8 +11,9 @@ const allowDenyOptions = [
 
 // Historical fix 79f591bea: an ACP `session/request_permission` may carry an
 // arbitrarily sparse toolCall, but the canonical payload must always end up
-// with a grantable command-approval subject — never an empty payload the user
-// cannot act on. The fallback chain is command → title → kind → fixed text.
+// with a grantable approval subject — never an empty payload the user cannot
+// act on. A command asks as `command`; everything that is neither a command
+// nor a file change asks as `tool_use` with the timeline row's presentation.
 describe("buildAcpPermissionInteractionPayload", () => {
   it("uses the tool call command when present", () => {
     const payload = buildAcpPermissionInteractionPayload({
@@ -36,25 +37,72 @@ describe("buildAcpPermissionInteractionPayload", () => {
     });
   });
 
-  it("falls back to the title when there is no command", () => {
+  it("asks as tool_use with the kind's presentation and the title as the headline", () => {
     const payload = buildAcpPermissionInteractionPayload({
       toolCall: { toolCallId: "call-2", title: "Fetch docs", kind: "fetch" },
       options: allowDenyOptions,
     });
 
     expect(payload).toMatchObject({
-      subject: { kind: "command", command: "Fetch docs" },
+      subject: {
+        kind: "tool_use",
+        itemId: "call-2",
+        tool: "fetch",
+        presentation: {
+          label: { pending: "Fetching", completed: "Fetched" },
+          icon: { glyph: "Globe" },
+          title: "Fetch docs",
+        },
+      },
     });
   });
 
-  it("falls back to the kind when there is no command or title", () => {
+  it("names the core kind when the call maps to one", () => {
     const payload = buildAcpPermissionInteractionPayload({
-      toolCall: { toolCallId: "call-3", kind: "fetch" },
+      toolCall: {
+        toolCallId: "call-3",
+        title: "Read File",
+        kind: "read",
+        locations: [{ path: "/etc/hosts" }],
+      },
       options: allowDenyOptions,
     });
 
     expect(payload).toMatchObject({
-      subject: { kind: "command", command: "fetch" },
+      subject: {
+        kind: "tool_use",
+        tool: "read",
+        presentation: {
+          label: { pending: "Reading file", completed: "Read file" },
+          title: "hosts",
+        },
+      },
+    });
+  });
+
+  it("asks as the bound bb tool with its definition's presentation", () => {
+    const payload = buildAcpPermissionInteractionPayload({
+      toolCall: {
+        toolCallId: "call-mcp",
+        title: "MCP: tool",
+        kind: "other",
+        injectedTool: {
+          name: "ask_user_question",
+          presentation: {
+            label: { pending: "Asking a question", completed: "Asked" },
+            icon: { glyph: "MessageQuestion" },
+          },
+        },
+      },
+      options: allowDenyOptions,
+    });
+
+    expect(payload).toMatchObject({
+      subject: {
+        kind: "tool_use",
+        tool: "ask_user_question",
+        presentation: { label: { pending: "Asking a question" } },
+      },
     });
   });
 
@@ -67,14 +115,42 @@ describe("buildAcpPermissionInteractionPayload", () => {
     if (payload.kind !== "approval") {
       throw new Error("Expected an approval payload");
     }
-    expect(payload.subject).toMatchObject({
-      kind: "command",
+    expect(payload.subject).toEqual({
+      kind: "tool_use",
       itemId: "call-4",
-      command: "ACP permission request",
+      tool: "tool",
+      presentation: {
+        label: { pending: "Running tool", completed: "Ran tool" },
+        icon: { glyph: "Toolbox" },
+      },
     });
     expect(payload.availableDecisions.length).toBeGreaterThan(0);
   });
 
+  it("takes the headline from the in-flight call when the permission itself has no title", () => {
+    const payload = buildAcpPermissionInteractionPayload({
+      toolCall: {
+        toolCallId: "call-5",
+        kind: "other",
+        startedToolCall: {
+          sessionUpdate: "tool_call",
+          toolCallId: "call-5",
+          title: "Search the web",
+          kind: "other",
+        },
+      },
+      options: allowDenyOptions,
+    });
+
+    expect(payload).toMatchObject({
+      subject: {
+        kind: "tool_use",
+        tool: "other",
+        presentation: { title: "Search the web" },
+      },
+    });
+  });
+
   it("still yields a grantable subject when the request carries no tool call at all", () => {
     const payload = buildAcpPermissionInteractionPayload({
       toolCall: undefined,
@@ -84,11 +160,15 @@ describe("buildAcpPermissionInteractionPayload", () => {
     if (payload.kind !== "approval") {
       throw new Error("Expected an approval payload");
     }
-    expect(payload.subject).toMatchObject({
-      kind: "command",
+    expect(payload.subject).toEqual({
+      kind: "tool_use",
       itemId: "acp-permission",
-      command: "ACP permission request",
-      actions: [{ type: "unknown", command: "ACP permission request" }],
+      tool: "tool",
+      presentation: {
+        label: { pending: "Running tool", completed: "Ran tool" },
+        icon: { glyph: "Toolbox" },
+        title: "ACP permission request",
+      },
     });
     expect(payload.availableDecisions).toEqual(["allow_once", "deny"]);
   });
@@ -161,6 +241,8 @@ describe("buildAcpPermissionInteractionPayload file-change subjects", () => {
           parentDir: "/tmp/qa-1719",
         },
         startedToolCall: {
+          sessionUpdate: "tool_call",
+          toolCallId: "write-tool-1",
           title: "Editing notes.md",
           kind: "edit",
           locations: [{ path: "/tmp/qa-1719/notes.md" }],
@@ -178,7 +260,7 @@ describe("buildAcpPermissionInteractionPayload file-change subjects", () => {
     });
   });
 
-  it("keeps a generic other-kind permission with locations as a command subject when nothing signals a write", () => {
+  it("keeps a generic other-kind permission with locations a tool_use subject when nothing signals a write", () => {
     const payload = buildAcpPermissionInteractionPayload({
       toolCall: {
         toolCallId: "read-tool-1",
@@ -186,6 +268,8 @@ describe("buildAcpPermissionInteractionPayload file-change subjects", () => {
         kind: "other",
         locations: [{ path: "/tmp/qa-1719/secrets.txt" }],
         startedToolCall: {
+          sessionUpdate: "tool_call",
+          toolCallId: "read-tool-1",
           title: "Reading secrets.txt",
           kind: "read",
           locations: [{ path: "/tmp/qa-1719/secrets.txt" }],
@@ -195,11 +279,15 @@ describe("buildAcpPermissionInteractionPayload file-change subjects", () => {
     });
 
     expect(payload).toMatchObject({
-      subject: { kind: "command", command: "Read secrets.txt" },
+      subject: {
+        kind: "tool_use",
+        tool: "other",
+        presentation: { title: "Read secrets.txt" },
+      },
     });
   });
 
-  it("keeps an edit-kind permission without any path as a command subject, like the timeline", () => {
+  it("keeps an edit-kind permission without any path a tool_use subject, like the timeline", () => {
     const payload = buildAcpPermissionInteractionPayload({
       toolCall: {
         toolCallId: "write-tool-2",
@@ -211,14 +299,15 @@ describe("buildAcpPermissionInteractionPayload file-change subjects", () => {
 
     expect(payload).toMatchObject({
       subject: {
-        kind: "command",
+        kind: "tool_use",
         itemId: "write-tool-2",
-        command: "Edit file",
+        tool: "edit",
+        presentation: { title: "Edit file" },
       },
     });
   });
 
-  it("keeps a move-kind permission as a command subject, like the timeline", () => {
+  it("keeps a move-kind permission a tool_use subject, like the timeline", () => {
     const payload = buildAcpPermissionInteractionPayload({
       toolCall: {
         toolCallId: "move-tool-1",
@@ -230,7 +319,14 @@ describe("buildAcpPermissionInteractionPayload file-change subjects", () => {
     });
 
     expect(payload).toMatchObject({
-      subject: { kind: "command", command: "Move notes.md" },
+      subject: {
+        kind: "tool_use",
+        tool: "move",
+        presentation: {
+          label: { pending: "Moving file", completed: "Moved file" },
+          title: "Move notes.md",
+        },
+      },
     });
   });
 
diff --git a/plugins/provider-acp/src/interactions.ts b/plugins/provider-acp/src/interactions.ts
index d28f70e260..d14bb62b36 100644
--- a/plugins/provider-acp/src/interactions.ts
+++ b/plugins/provider-acp/src/interactions.ts
@@ -3,27 +3,42 @@
  *
  * Maps the ACP bridge's permission requests onto the canonical
  * `PendingInteractionPayload`/`PendingInteractionResolution` shapes from
- * `@bb/domain`. Extracted from the ACP adapter so the adapter (legacy
- * dialect) and the bridge's canonical `interaction/request` path share one
- * mapping in both directions.
+ * `@bb/domain`, in both directions. A command asks as a `command` subject, a
+ * file change as a `file_change` subject, and everything else — an MCP tool,
+ * a read outside the project, a kind with no core shape — as a `tool_use`
+ * subject carrying the same presentation its timeline row does.
  */
 
 import {
   type PendingInteractionApprovalDecision,
+  type PendingInteractionApprovalSubject,
   type PendingInteractionPayload,
   type PendingInteractionResolution,
   isApprovalPendingInteractionPayload,
   isApprovalPendingInteractionResolution,
 } from "@get-bb/plugin-sdk/provider-bridge";
+import { toolKindPresentation } from "./presentation.js";
 import {
   type AcpToolCallOperation,
   type AcpToolCallOperationInput,
-  classifyAcpToolCall,
-  extractAcpCommand,
+  classifyAcpToolCall as classifyAcpToolCallOperation,
   extractAcpToolCallPaths,
   resolveAcpFileChangeWriteScope,
 } from "./tool-call-operation.js";
-import type { AcpPermissionOptionKind } from "./wire.js";
+import {
+  classifyAcpToolCall,
+  type AcpInjectedTool,
+} from "./tool-classification.js";
+import type {
+  AcpPermissionOptionKind,
+  AcpToolCallUpdateEvent,
+  AcpToolKind,
+} from "./wire.js";
+
+type ToolUseApprovalSubject = Extract<
+  PendingInteractionApprovalSubject,
+  { kind: "tool_use" }
+>;
 
 /**
  * The bridge maps the user's decision back onto the ACP options it kept for
@@ -35,13 +50,16 @@ interface AcpPermissionResponse {
 
 interface AcpPermissionToolCall extends AcpToolCallOperationInput {
   toolCallId: string;
+  kind?: AcpToolKind | undefined;
   /**
    * The in-flight `tool_call` with the same id, when the agent started one
    * before it asked. opencode's `external_directory` permission (a write
    * outside the project) arrives as the generic kind `other` with a bare
    * directory title; the running `edit` tool call is the write signal.
    */
-  startedToolCall?: AcpToolCallOperationInput | undefined;
+  startedToolCall?: AcpToolCallUpdateEvent | undefined;
+  /** The bb-injected tool the in-flight call is bound to, if any (Q31). */
+  injectedTool?: AcpInjectedTool | undefined;
 }
 
 /**
@@ -51,11 +69,72 @@ interface AcpPermissionToolCall extends AcpToolCallOperationInput {
 function classifyAcpPermission(
   toolCall: AcpPermissionToolCall,
 ): AcpToolCallOperation {
-  const own = classifyAcpToolCall(toolCall);
+  const own = classifyAcpToolCallOperation(toolCall);
   if (own.kind !== "generic" || !toolCall.startedToolCall) {
     return own;
   }
-  return classifyAcpToolCall(toolCall.startedToolCall);
+  return classifyAcpToolCallOperation(toolCall.startedToolCall);
+}
+
+/** The permission's own tool call as the translator's event shape. */
+function permissionToolCallEvent(
+  toolCall: AcpPermissionToolCall,
+): AcpToolCallUpdateEvent {
+  return {
+    sessionUpdate: "tool_call",
+    toolCallId: toolCall.toolCallId,
+    ...(toolCall.title !== undefined ? { title: toolCall.title } : {}),
+    ...(toolCall.kind !== undefined ? { kind: toolCall.kind } : {}),
+    ...(toolCall.content !== undefined
+      ? { content: [...toolCall.content] }
+      : {}),
+    ...(toolCall.locations !== undefined
+      ? { locations: [...toolCall.locations] }
+      : {}),
+    ...(toolCall.rawInput !== undefined ? { rawInput: toolCall.rawInput } : {}),
+  };
+}
+
+/**
+ * The `tool_use` subject for a permission that is neither a command nor a
+ * file change: the same classification the timeline row gets, so the banner
+ * and the row read alike. The permission's own tool call describes the ask;
+ * when it carries no title the in-flight call it belongs to supplies one. A
+ * request with no tool call at all still yields a grantable subject.
+ */
+function buildToolUseSubject(
+  toolCall: AcpPermissionToolCall | undefined,
+): ToolUseApprovalSubject {
+  if (toolCall === undefined) {
+    return {
+      kind: "tool_use",
+      itemId: "acp-permission",
+      tool: "tool",
+      presentation: toolKindPresentation({
+        kind: undefined,
+        title: "ACP permission request",
+      }),
+    };
+  }
+  const own = classifyAcpToolCall(
+    permissionToolCallEvent(toolCall),
+    toolCall.injectedTool,
+  );
+  const described =
+    own.presentation.title === undefined && toolCall.startedToolCall
+      ? classifyAcpToolCall(toolCall.startedToolCall, toolCall.injectedTool)
+      : own;
+  return {
+    kind: "tool_use",
+    itemId: toolCall.toolCallId,
+    tool:
+      described.item.type === "tool"
+        ? described.item.tool
+        : (toolCall.kind ??
+          toolCall.startedToolCall?.kind ??
+          described.item.type),
+    presentation: described.presentation,
+  };
 }
 
 export function buildAcpApprovalDecisions(
@@ -77,14 +156,6 @@ export function buildAcpApprovalDecisions(
   return decisions.length > 0 ? decisions : ["deny"];
 }
 
-function buildOpaqueAcpPermissionCommand(
-  toolCall: AcpPermissionToolCall,
-): string {
-  return (
-    extractAcpCommand(toolCall) ?? toolCall.kind ?? "ACP permission request"
-  );
-}
-
 /** The canonical approval payload for an ACP `session/request_permission`. */
 export function buildAcpPermissionInteractionPayload(args: {
   toolCall: AcpPermissionToolCall | undefined;
@@ -112,25 +183,24 @@ export function buildAcpPermissionInteractionPayload(args: {
       availableDecisions,
     };
   }
-  // Commands and generic tools both take the command subject: it is the one
-  // canonical subject that carries free text, and the fallback chain
-  // command → title → kind → fixed text always yields a grantable subject.
-  const command =
-    operation?.kind === "command"
-      ? operation.command
-      : toolCall
-        ? buildOpaqueAcpPermissionCommand(toolCall)
-        : "ACP permission request";
+  if (toolCall && operation?.kind === "command") {
+    return {
+      kind: "approval",
+      subject: {
+        kind: "command",
+        itemId: toolCall.toolCallId,
+        command: operation.command,
+        cwd: null,
+        actions: [{ type: "unknown", command: operation.command }],
+        sessionGrant: null,
+      },
+      reason: null,
+      availableDecisions,
+    };
+  }
   return {
     kind: "approval",
-    subject: {
-      kind: "command",
-      itemId: toolCall?.toolCallId ?? "acp-permission",
-      command,
-      cwd: null,
-      actions: [{ type: "unknown", command }],
-      sessionGrant: null,
-    },
+    subject: buildToolUseSubject(toolCall),
     reason: null,
     availableDecisions,
   };
diff --git a/plugins/provider-acp/src/presentation.ts b/plugins/provider-acp/src/presentation.ts
new file mode 100644
index 0000000000..7d36e69756
--- /dev/null
+++ b/plugins/provider-acp/src/presentation.ts
@@ -0,0 +1,251 @@
+/**
+ * Declarative presentation for every item the ACP bridge opens or closes
+ * (grammar v3, docs/provider-plugin-api.md §3).
+ *
+ * ACP agents describe a tool call with a native kind enum (`read`, `edit`,
+ * `delete`, `move`, `search`, `execute`, `think`, `fetch`, `other`) and a
+ * human `title` ("Read File", "`touch a.txt`", "MCP: tool"). This module is
+ * where that vocabulary becomes a timeline row: a label pair per kind, a host
+ * glyph, and the agent's title as the headline. Core keeps no table of ACP
+ * kinds or titles; the persisted event carries this snapshot, so a row
+ * renders the same way after the plugin is upgraded or removed.
+ *
+ * Icons are host glyph names from the shared icon registry
+ * (`@bb/shared-ui/icon`); the persisted form is glyph-only by design.
+ */
+import type { DeltaPresentation } from "@get-bb/plugin-sdk/provider-bridge";
+import type { AcpToolKind } from "./wire.js";
+
+/** Row headlines stay one line and short; the item carries the full text. */
+const TITLE_MAX_LENGTH = 160;
+
+export function presentationTitle(text: string): string | undefined {
+  const firstLine = text.trim().split("\n", 1)[0]?.trim() ?? "";
+  if (firstLine.length === 0) {
+    return undefined;
+  }
+  return firstLine.length > TITLE_MAX_LENGTH
+    ? `${firstLine.slice(0, TITLE_MAX_LENGTH - 1)}…`
+    : firstLine;
+}
+
+function withTitle(
+  presentation: DeltaPresentation,
+  title: string | undefined,
+): DeltaPresentation {
+  return title === undefined ? presentation : { ...presentation, title };
+}
+
+function fileName(path: string): string {
+  const segments = path.split("/").filter((segment) => segment.length > 0);
+  return segments[segments.length - 1] ?? path;
+}
+
+/**
+ * Agents wrap a command title in Markdown code ticks (Cursor: "`sleep 2`");
+ * the headline shows the command itself.
+ */
+function stripCodeTicks(text: string): string {
+  const trimmed = text.trim();
+  return trimmed.length >= 2 && trimmed.startsWith("`") && trimmed.endsWith("`")
+    ? trimmed.slice(1, -1)
+    : trimmed;
+}
+
+// ---------------------------------------------------------------------------
+// Core-kind items
+// ---------------------------------------------------------------------------
+
+export const COMPACTION_PRESENTATION: DeltaPresentation = {
+  label: { pending: "Compacting context", completed: "Compacted context" },
+  icon: { glyph: "Archive" },
+};
+
+export function commandPresentation(command: string): DeltaPresentation {
+  return withTitle(
+    {
+      label: { pending: "Running command", completed: "Ran command" },
+      icon: { glyph: "Terminal" },
+    },
+    presentationTitle(stripCodeTicks(command)),
+  );
+}
+
+export type AcpFileChangeVerb = "add" | "update" | "delete";
+
+/**
+ * A file change: the verb comes from the classified change kind (`add` for
+ * a bridge-side `fs/write_text_file` that created the file, `delete` for the
+ * ACP `delete` kind, `update` otherwise); the headline lists the file names.
+ */
+export function fileChangePresentation(args: {
+  verb: AcpFileChangeVerb;
+  paths: readonly string[];
+}): DeltaPresentation {
+  const names = [...new Set(args.paths.map(fileName))];
+  const plural = names.length > 1;
+  const label =
+    args.verb === "add"
+      ? {
+          pending: plural ? "Writing files" : "Writing file",
+          completed: plural ? "Wrote files" : "Wrote file",
+        }
+      : args.verb === "delete"
+        ? {
+            pending: plural ? "Deleting files" : "Deleting file",
+            completed: plural ? "Deleted files" : "Deleted file",
+          }
+        : {
+            pending: plural ? "Editing files" : "Editing file",
+            completed: plural ? "Edited files" : "Edited file",
+          };
+  return withTitle(
+    {
+      label,
+      icon: { glyph: args.verb === "delete" ? "Trash2" : "EditFile" },
+    },
+    names.length === 0 ? undefined : presentationTitle(names.join(", ")),
+  );
+}
+
+export function fileReadPresentation(path: string): DeltaPresentation {
+  return withTitle(
+    {
+      label: { pending: "Reading file", completed: "Read file" },
+      icon: { glyph: "FileText" },
+    },
+    presentationTitle(fileName(path)),
+  );
+}
+
+/** `content` searches inside files; `path` matches file names. */
+export function searchPresentation(args: {
+  mode: "content" | "path";
+  query: string;
+}): DeltaPresentation {
+  return withTitle(
+    args.mode === "content"
+      ? {
+          label: { pending: "Searching files", completed: "Searched files" },
+          icon: { glyph: "Search" },
+        }
+      : {
+          label: { pending: "Finding files", completed: "Found files" },
+          icon: { glyph: "FolderOpen" },
+        },
+    presentationTitle(args.query),
+  );
+}
+
+export function webFetchPresentation(url: string): DeltaPresentation {
+  return withTitle(
+    {
+      label: { pending: "Fetching page", completed: "Fetched page" },
+      icon: { glyph: "Browser" },
+    },
+    presentationTitle(url),
+  );
+}
+
+/** A `think` tool call: the agent's reasoning, as a tool. */
+export function reasoningPresentation(): DeltaPresentation {
+  return {
+    label: { pending: "Thinking", completed: "Thought" },
+    icon: { glyph: "Brain" },
+  };
+}
+
+/**
+ * A plan snapshot (ACP `plan` update). The headline is the step in progress
+ * — what the agent is doing now. Collapsed by default: the todo banner reads
+ * the snapshot; the row is bookkeeping.
+ */
+export function planStepsPresentation(
+  steps: readonly { step: string; status?: string }[],
+): DeltaPresentation {
+  const active = steps.find((step) => step.status === "active");
+  return withTitle(
+    {
+      label: { pending: "Updating plan", completed: "Updated plan" },
+      icon: { glyph: "ListTodo" },
+      suppress: true,
+    },
+    active === undefined ? undefined : presentationTitle(active.step),
+  );
+}
+
+/**
+ * A bb-injected tool whose definition carries no presentation (a server from
+ * before the field existed): a generic label under bb's own glyph.
+ */
+export function bbToolPresentation(tool: string): DeltaPresentation {
+  return {
+    label: { pending: `Running ${tool}`, completed: `Ran ${tool}` },
+    icon: { glyph: "Toolbox" },
+  };
+}
+
+// ---------------------------------------------------------------------------
+// Native kinds
+// ---------------------------------------------------------------------------
+
+interface KindPresentationSpec {
+  label: DeltaPresentation["label"];
+  glyph: string;
+}
+
+const KIND_PRESENTATIONS: Readonly<Record<AcpToolKind, KindPresentationSpec>> =
+  {
+    read: {
+      label: { pending: "Reading file", completed: "Read file" },
+      glyph: "FileText",
+    },
+    edit: {
+      label: { pending: "Editing file", completed: "Edited file" },
+      glyph: "EditFile",
+    },
+    delete: {
+      label: { pending: "Deleting file", completed: "Deleted file" },
+      glyph: "Trash2",
+    },
+    move: {
+      label: { pending: "Moving file", completed: "Moved file" },
+      glyph: "FolderEdit",
+    },
+    search: {
+      label: { pending: "Searching", completed: "Searched" },
+      glyph: "Search",
+    },
+    execute: {
+      label: { pending: "Running command", completed: "Ran command" },
+      glyph: "Terminal",
+    },
+    think: {
+      label: { pending: "Thinking", completed: "Thought" },
+      glyph: "Brain",
+    },
+    fetch: {
+      label: { pending: "Fetching", completed: "Fetched" },
+      glyph: "Globe",
+    },
+    other: {
+      label: { pending: "Running tool", completed: "Ran tool" },
+      glyph: "Toolbox",
+    },
+  };
+
+/**
+ * A tool call with no core shape of its own, or one whose core shape the
+ * agent left unfilled (a `read` with no path, a `fetch` with no URL): the
+ * native kind picks the label and glyph, the agent's title is the headline.
+ */
+export function toolKindPresentation(args: {
+  kind: AcpToolKind | undefined;
+  title: string | undefined;
+}): DeltaPresentation {
+  const spec = KIND_PRESENTATIONS[args.kind ?? "other"];
+  return withTitle(
+    { label: spec.label, icon: { glyph: spec.glyph } },
+    args.title === undefined ? undefined : presentationTitle(args.title),
+  );
+}
diff --git a/plugins/provider-acp/src/tool-classification.ts b/plugins/provider-acp/src/tool-classification.ts
new file mode 100644
index 0000000000..2d3eff25fd
--- /dev/null
+++ b/plugins/provider-acp/src/tool-classification.ts
@@ -0,0 +1,386 @@
+/**
+ * ACP tool call → grammar v3 item shape + presentation.
+ *
+ * An ACP agent describes a tool call with a native kind enum and a human
+ * title. The kind maps straight onto the core kinds: `execute` → `command`,
+ * `edit`/`delete` → `fileChange`, `read` → `fileRead`, `search` → `search`,
+ * `fetch` → `webFetch`, `think` → `reasoning`; everything else — `other`,
+ * `move`, an agent that sent no kind — is a generic `tool` whose `tool` slot
+ * names the kind. The title is never a tool name: it rides
+ * `presentation.title`.
+ *
+ * A core shape has required fields the agent does not always fill (Cursor's
+ * `read` and `fetch` calls carry an empty `rawInput` and no `locations`). A
+ * kind whose shape cannot be built honestly stays a generic `tool` that
+ * presents as its kind ("Reading file" with the agent's title), so a row is
+ * never a `fileRead` without a path or a `webFetch` without a URL.
+ *
+ * The command / file-change decision is `tool-call-operation.ts`'s, which the
+ * permission mapping shares, so an approval row and its timeline item never
+ * disagree (#1803).
+ */
+
+import {
+  extractResultText,
+  toOptionalString,
+  type DeltaFileChange,
+  type DeltaItemShape,
+  type DeltaPresentation,
+} from "@get-bb/plugin-sdk/provider-bridge";
+import { z } from "zod";
+import {
+  bbToolPresentation,
+  commandPresentation,
+  fileChangePresentation,
+  fileReadPresentation,
+  reasoningPresentation,
+  searchPresentation,
+  toolKindPresentation,
+  webFetchPresentation,
+  type AcpFileChangeVerb,
+} from "./presentation.js";
+import {
+  classifyAcpToolCall as classifyAcpToolCallOperation,
+  extractAcpToolCallPaths,
+  type AcpToolCallOperation,
+} from "./tool-call-operation.js";
+import {
+  extractAcpContentText,
+  type AcpToolCallUpdateEvent,
+  type AcpToolKind,
+} from "./wire.js";
+
+/** A tool call's item shape plus the presentation that rides its lifecycle. */
+export interface AcpClassifiedToolCall {
+  item: DeltaItemShape;
+  presentation: DeltaPresentation;
+}
+
+/**
+ * A bb-injected tool the session was constructed with (Q31). The definition
+ * carries its presentation once the server resolved one; a definition from
+ * before the field existed presents generically.
+ */
+export interface AcpInjectedTool {
+  name: string;
+  presentation?: DeltaPresentation;
+}
+
+/** The `server` a bb-injected tool call carries on the wire (Q31). */
+const BB_TOOL_SERVER = "bb";
+
+/**
+ * Whether a tool call can be a call to a bb-injected tool: ACP agents report
+ * MCP tool calls under the generic `other` kind (or no kind), never as a
+ * command, a file change, or a native read/search/fetch/think.
+ */
+export function isInjectedToolCandidate(
+  event: AcpToolCallUpdateEvent,
+): boolean {
+  if (event.kind !== undefined && event.kind !== "other") {
+    return false;
+  }
+  return classifyAcpToolCallOperation(event).kind === "generic";
+}
+
+const INLINE_IMAGE_DATA_URL_PATTERN =
+  /data:image\/[a-z0-9.+-]+(?:;[^,]*)?;base64,[a-z0-9+/_=-]+/giu;
+
+/**
+ * The text output of a tool call: its `content` text blocks, else its
+ * `rawOutput` rendered as text. Some ACP agents echo MCP image results as
+ * data-URL attachments in rawOutput; the envelope stays, the potentially
+ * multi-megabyte payload does not reach the timeline.
+ */
+export function extractAcpToolCallOutputText(
+  event: AcpToolCallUpdateEvent,
+): string | undefined {
+  const chunks: string[] = [];
+  for (const entry of event.content ?? []) {
+    if (entry.type !== "content") {
+      continue;
+    }
+    const text = extractAcpContentText(entry.content);
+    if (text) {
+      chunks.push(text);
+    }
+  }
+  if (chunks.length > 0) {
+    return chunks.join("\n");
+  }
+  if (event.rawOutput === undefined) {
+    return undefined;
+  }
+  const rawOutputText = extractResultText(event.rawOutput)
+    .replace(INLINE_IMAGE_DATA_URL_PATTERN, "[image]")
+    .trim();
+  return rawOutputText.length > 0 ? rawOutputText : undefined;
+}
+
+// ---------------------------------------------------------------------------
+// Argument schemas (one-off, dialect-local). ACP does not standardize
+// rawInput; these are the field names the agents in the wild use.
+// ---------------------------------------------------------------------------
+
+const optionalNonBlank = z
+  .string()
+  .optional()
+  .transform((value) =>
+    value !== undefined && value.trim().length > 0 ? value : undefined,
+  );
+
+const searchRawInputSchema = z
+  .object({
+    pattern: optionalNonBlank,
+    query: optionalNonBlank,
+    regex: optionalNonBlank,
+    glob: optionalNonBlank,
+    globPattern: optionalNonBlank,
+    path: optionalNonBlank,
+    directory: optionalNonBlank,
+  })
+  .passthrough();
+
+const fetchRawInputSchema = z
+  .object({ url: optionalNonBlank, uri: optionalNonBlank })
+  .passthrough();
+
+const thinkRawInputSchema = z
+  .object({ thought: optionalNonBlank, thinking: optionalNonBlank })
+  .passthrough();
+
+/**
+ * Agents put the one thing a call is about in the title when they put it
+ * nowhere else: grok titles a read "Read `/abs/path`" and a fetch
+ * "Fetch: https://…". A single code-ticked token, or a single URL, in the
+ * title of a call of that kind is that thing.
+ */
+const SINGLE_TICKED_TOKEN_PATTERN = /^[^`]*`([^`\n]+)`[^`]*$/;
+const URL_PATTERN = /https?:\/\/[^\s`'"<>]+/g;
+
+function tickedTokenFromTitle(title: string | undefined): string | undefined {
+  if (title === undefined) {
+    return undefined;
+  }
+  const match = SINGLE_TICKED_TOKEN_PATTERN.exec(title);
+  const token = match?.[1]?.trim();
+  return token !== undefined && token.length > 0 ? token : undefined;
+}
+
+function urlFromTitle(title: string | undefined): string | undefined {
+  if (title === undefined) {
+    return undefined;
+  }
+  const urls = title.match(URL_PATTERN);
+  return urls !== null && urls.length === 1 ? urls[0] : undefined;
+}
+
+function looksLikePath(token: string): boolean {
+  return (
+    token.startsWith("/") || token.startsWith("~") || token.startsWith(".")
+  );
+}
+
+// ---------------------------------------------------------------------------
+// Per-kind shapes
+// ---------------------------------------------------------------------------
+
+/** The verb a set of file changes reads as: all adds, all deletes, else edits. */
+function fileChangeVerb(
+  changes: readonly DeltaFileChange[],
+): AcpFileChangeVerb {
+  if (changes.every((change) => change.kind === "add")) {
+    return "add";
+  }
+  if (changes.every((change) => change.kind === "delete")) {
+    return "delete";
+  }
+  return "update";
+}
+
+function buildAcpFileChanges(
+  event: AcpToolCallUpdateEvent,
+  operation: Extract<AcpToolCallOperation, { kind: "file_change" }>,
+): DeltaFileChange[] {
+  const changes: DeltaFileChange[] = [];
+  for (const entry of event.content ?? []) {
+    if (entry.type !== "diff") {
+      continue;
+    }
+    const oldText = entry.oldText ?? undefined;
+    changes.push({
+      path: entry.path,
+      kind: oldText === undefined ? "add" : "update",
+      ...(oldText === undefined ? {} : { oldText }),
+      newText: entry.newText,
+    });
+  }
+  if (changes.length > 0) {
+    return changes;
+  }
+  const [path] = operation.paths;
+  return path === undefined ? [] : [{ path, kind: operation.changeKind }];
+}
+
+function fileChangeItem(changes: DeltaFileChange[]): AcpClassifiedToolCall {
+  return {
+    item: { type: "fileChange", changes },
+    presentation: fileChangePresentation({
+      verb: fileChangeVerb(changes),
+      paths: changes.map((change) => change.path),
+    }),
+  };
+}
+
+function fileReadItem(
+  event: AcpToolCallUpdateEvent,
+  title: string | undefined,
+): AcpClassifiedToolCall | null {
+  const ticked = tickedTokenFromTitle(title);
+  const path =
+    extractAcpToolCallPaths(event)[0] ??
+    (ticked !== undefined && looksLikePath(ticked) ? ticked : undefined);
+  if (path === undefined) {
+    return null;
+  }
+  return {
+    item: { type: "fileRead", path },
+    presentation: fileReadPresentation(path),
+  };
+}
+
+function searchItem(
+  event: AcpToolCallUpdateEvent,
+): AcpClassifiedToolCall | null {
+  const parsed = searchRawInputSchema.safeParse(event.rawInput);
+  if (!parsed.success) {
+    return null;
+  }
+  const input = parsed.data;
+  const glob = input.glob ?? input.globPattern;
+  const contentQuery = input.pattern ?? input.query ?? input.regex;
+  const mode = contentQuery !== undefined ? "content" : "path";
+  const query = contentQuery ?? glob;
+  if (query === undefined) {
+    return null;
+  }
+  const root = input.path ?? input.directory;
+  return {
+    item: {
+      type: "search",
+      mode,
+      query,
+      ...(root === undefined ? {} : { path: root }),
+    },
+    presentation: searchPresentation({ mode, query }),
+  };
+}
+
+function webFetchItem(
+  event: AcpToolCallUpdateEvent,
+  title: string | undefined,
+): AcpClassifiedToolCall | null {
+  const parsed = fetchRawInputSchema.safeParse(event.rawInput);
+  const url =
+    (parsed.success ? (parsed.data.url ?? parsed.data.uri) : undefined) ??
+    urlFromTitle(title);
+  if (url === undefined) {
+    return null;
+  }
+  return {
+    item: { type: "webFetch", url, pattern: null },
+    presentation: webFetchPresentation(url),
+  };
+}
+
+/**
+ * A `think` call is the agent's reasoning as a tool: the thought is the
+ * call's content text, else its `rawInput` thought field; an in-flight call
+ * with neither opens empty and fills in at the close.
+ */
+function reasoningItem(event: AcpToolCallUpdateEvent): AcpClassifiedToolCall {
+  const parsed = thinkRawInputSchema.safeParse(event.rawInput);
+  const thought =
+    extractAcpToolCallOutputText(event) ??
+    (parsed.success
+      ? (parsed.data.thought ?? parsed.data.thinking)
+      : undefined);
+  return {
+    item: {
+      type: "reasoning",
+      summary: [],
+      content: thought === undefined ? [] : [thought],
+    },
+    presentation: reasoningPresentation(),
+  };
+}
+
+function genericToolItem(
+  kind: AcpToolKind | undefined,
+  title: string | undefined,
+): AcpClassifiedToolCall {
+  return {
+    item: { type: "tool", tool: kind ?? "tool" },
+    presentation: toolKindPresentation({ kind, title }),
+  };
+}
+
+/**
+ * A call to a bb-injected tool: `server: "bb"` names its origin and the
+ * definition the server handed the bridge says how the row reads, so no
+ * tool-name table is needed anywhere downstream.
+ */
+function bbToolItem(injected: AcpInjectedTool): AcpClassifiedToolCall {
+  return {
+    item: { type: "tool", tool: injected.name, server: BB_TOOL_SERVER },
+    presentation: injected.presentation ?? bbToolPresentation(injected.name),
+  };
+}
+
+/**
+ * Classify a (merged) tool_call event into its item shape and presentation.
+ * A call bound to a bb-injected tool reads as that tool. Otherwise command
+ * and file-change come first, from the shared operation classifier (a diff
+ * makes any kind a file change); then the native kind picks the shape; a
+ * kind whose shape the agent left unfilled is a generic tool presenting as
+ * its kind.
+ */
+export function classifyAcpToolCall(
+  event: AcpToolCallUpdateEvent,
+  injected?: AcpInjectedTool,
+): AcpClassifiedToolCall {
+  if (injected !== undefined && isInjectedToolCandidate(event)) {
+    return bbToolItem(injected);
+  }
+  const operation = classifyAcpToolCallOperation(event);
+  if (operation.kind === "command") {
+    return {
+      item: { type: "command", command: operation.command, cwd: "" },
+      presentation: commandPresentation(operation.command),
+    };
+  }
+  if (operation.kind === "file_change") {
+    const changes = buildAcpFileChanges(event, operation);
+    if (changes.length > 0) {
+      return fileChangeItem(changes);
+    }
+  }
+  const title = toOptionalString(event.title);
+  switch (event.kind) {
+    case "read":
+      return fileReadItem(event, title) ?? genericToolItem(event.kind, title);
+    case "search":
+      return searchItem(event) ?? genericToolItem(event.kind, title);
+    case "fetch":
+      return webFetchItem(event, title) ?? genericToolItem(event.kind, title);
+    case "think":
+      return reasoningItem(event);
+    case "execute":
+    case "edit":
+    case "delete":
+    case "move":
+    case "other":
+    case undefined:
+      return genericToolItem(event.kind, title);
+  }
+}
diff --git a/plugins/provider-acp/src/wire.ts b/plugins/provider-acp/src/wire.ts
index 744228ad06..97234a07f8 100644
--- a/plugins/provider-acp/src/wire.ts
+++ b/plugins/provider-acp/src/wire.ts
@@ -44,7 +44,8 @@ export function extractAcpContentText(
 // Tool calls
 // ---------------------------------------------------------------------------
 
-const acpToolKindSchema = z.enum([
+/** The ACP tool-call kind vocabulary; an absent kind reads as `other`. */
+export const acpToolKindSchema = z.enum([
   "read",
   "edit",
   "delete",
@@ -55,6 +56,7 @@ const acpToolKindSchema = z.enum([
   "fetch",
   "other",
 ]);
+export type AcpToolKind = z.infer<typeof acpToolKindSchema>;
 
 const acpToolCallStatusSchema = z.enum([
   "pending",