feat(engine): add hasPlanSkippedSteps and document plan DAG helpers (#3470)

Closes #2298

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: kiannidev

packages/gittensory-engine/README.md

@@ -517,6 +517,20 @@ rendering.
 Each builder returns `RawPlanStep[]` in the shape accepted by `gittensory_build_plan`. Templates are pure data — they
 describe step ordering via `dependsOn` but never actuate anything.
 
+## Plan DAG status helpers
+
+`plan-export.ts` renders a validated `PlanDag`; the helpers below are pure predicates over that shape for miner and
+dashboard progress summaries:
+
+- `countPlanSteps(plan)` — total step count
+- `countPlanStepsByStatus(plan, status)` — steps matching a `PlanStepStatus`
+- `isPlanEmpty(plan)` — whether the plan has no steps
+- `isPlanFullyCompleted(plan)` — every step is `completed` (empty plans are not complete)
+- `hasPlanFailedSteps(plan)` — any step is `failed`
+- `hasPlanPendingSteps(plan)` — any step is `pending`
+- `hasPlanRunningSteps(plan)` — any step is `running`
+- `hasPlanSkippedSteps(plan)` — any step is `skipped`
+
 ## Opportunity competition
 
 `computeOpportunityCompetition(highRiskDuplicateClusters, openPullRequests)` mirrors the hosted

packages/gittensory-engine/src/index.ts

@@ -143,6 +143,7 @@ export { isPlanFullyCompleted } from "./plan-completion.js";
 export { hasPlanFailedSteps } from "./plan-failure.js";
 export { hasPlanPendingSteps } from "./plan-pending.js";
 export { hasPlanRunningSteps } from "./plan-running.js";
+export { hasPlanSkippedSteps } from "./plan-skipped.js";
 export * from "./plan-templates.js";
 export * from "./portfolio/queue.js";
 export {

packages/gittensory-engine/src/plan-skipped.ts

@@ -0,0 +1,8 @@
+import type { PlanDag } from "./plan-export.js";
+
+/**
+ * Return whether any step in the plan was skipped. Pure — reads the plan DAG only.
+ */
+export function hasPlanSkippedSteps(plan: PlanDag): boolean {
+  return plan.steps.some((step) => step.status === "skipped");
+}

test/unit/plan-skipped.test.ts

@@ -0,0 +1,54 @@
+import { describe, expect, it } from "vitest";
+
+import { hasPlanSkippedSteps } from "../../packages/gittensory-engine/src/plan-skipped";
+import type { PlanStep } from "../../packages/gittensory-engine/src/plan-export";
+
+function step(over: Partial<PlanStep> & { id: string; title: string }): PlanStep {
+  return {
+    actionClass: undefined,
+    dependsOn: [],
+    status: "pending",
+    attempts: 0,
+    maxAttempts: 3,
+    lastError: null,
+    ...over,
+  };
+}
+
+describe("hasPlanSkippedSteps", () => {
+  it("returns false for an empty plan", () => {
+    expect(hasPlanSkippedSteps({ steps: [] })).toBe(false);
+  });
+
+  it("returns false when no step was skipped", () => {
+    expect(
+      hasPlanSkippedSteps({
+        steps: [
+          step({ id: "a", title: "Build", status: "completed" }),
+          step({ id: "b", title: "Test", status: "pending" }),
+        ],
+      }),
+    ).toBe(false);
+  });
+
+  it("returns true when at least one step was skipped", () => {
+    expect(
+      hasPlanSkippedSteps({
+        steps: [
+          step({ id: "a", title: "Build", status: "completed" }),
+          step({ id: "b", title: "Deploy", status: "skipped" }),
+        ],
+      }),
+    ).toBe(true);
+  });
+
+  it("is exported from the package barrel", async () => {
+    const barrel = await import("../../packages/gittensory-engine/src/index");
+    expect(typeof barrel.hasPlanSkippedSteps).toBe("function");
+    expect(
+      barrel.hasPlanSkippedSteps({
+        steps: [step({ id: "a", title: "A", status: "skipped" })],
+      }),
+    ).toBe(true);
+  });
+});