docs(miner): cross-reference the MCP tool surface from coding-agent-driver.md (#5418)

The README's MCP server section already documents every landed
gittensory-miner-mcp tool, including the excluded-columns safety note for
the ledger/governor tools, but nothing pointed a coding-agent-driver.md
reader at it, and there was no automated check keeping the docs in sync
with the actual tool registry. Adds the cross-reference, strengthens the
paragraph relating AMS's local tools to ORB's hosted ones (naming
convention, local SQLite vs. hosted backing store), and adds a parity
test that fails if a registered tool goes undocumented or vice versa.

Closes #5162

Author: joaovictor91123

packages/gittensory-miner/README.md

@@ -172,7 +172,7 @@ This completes the read-only AMS MCP tool surface (status, portfolio, claims, ev
 }
 ```
 
-`gittensory` exposes ORB's hosted contributor-workflow tools (issue ranking, PR packet prep, decision packs). `gittensory-miner` exposes AMS's own local state-visibility tools listed above (portfolio dashboard, claims, audit feed, run state, plans) — a fully separate, 100% local tool surface with no shared code or network calls between the two.
+`gittensory` exposes ORB's hosted contributor-workflow tools (issue ranking, PR packet prep, decision packs). `gittensory-miner` exposes AMS's own local state-visibility tools listed above (portfolio dashboard, claims, audit feed, run state, plans) — a fully separate, 100% local tool surface with no shared code or network calls between the two. Both follow the same `gittensory_*` tool-naming convention (`gittensory_...` vs. `gittensory_miner_...`), but back onto different stores: ORB's tools read the hosted gittensory backend, AMS's tools read this machine's own local SQLite files (see [Local storage](#local-storage)) — a handful of AMS tools even name the ORB tool they mirror (e.g. `gittensory_miner_get_run_state` is the read-only analog of `gittensory_get_automation_state`) so the relationship is explicit at the point of use, not just here.
 
 ## Version check
 

packages/gittensory-miner/docs/coding-agent-driver.md

@@ -129,3 +129,4 @@ between loop cycles -- an after-the-fact, cross-cycle total, not the per-iterati
 - [`env-reference.md`](env-reference.md) — env vars including ledger path overrides.
 - [`../DEPLOYMENT.md`](../DEPLOYMENT.md) — laptop vs fleet deployment and state directory layout.
 - [`miner-goal-spec.md`](miner-goal-spec.md) — per-repo `.gittensory-miner.yml` targeting policy.
+- [`../README.md#mcp-server`](../README.md#mcp-server) — the `gittensory-miner-mcp` read-only tool surface for querying this driver's resolved status (provider, model env-var name, CLI presence) and the rest of AMS's local state over MCP.

test/unit/miner-mcp-tool-docs-parity.test.ts

@@ -0,0 +1,55 @@
+import { readFileSync } from "node:fs";
+import { join } from "node:path";
+import { describe, expect, it } from "vitest";
+
+const MCP_BIN_PATH = join(process.cwd(), "packages/gittensory-miner/bin/gittensory-miner-mcp.js");
+const README_PATH = join(process.cwd(), "packages/gittensory-miner/README.md");
+const CODING_AGENT_DRIVER_DOC_PATH = join(process.cwd(), "packages/gittensory-miner/docs/coding-agent-driver.md");
+
+/** Every `server.registerTool("gittensory_miner_...", ...)` name in the real MCP bin -- the source of truth
+ *  this test pins the README's "MCP server" section against, so the two can never silently drift (#5162). */
+function registeredMinerMcpToolNames(): string[] {
+  const source = readFileSync(MCP_BIN_PATH, "utf8");
+  const names = [...source.matchAll(/server\.registerTool\(\s*\n?\s*"(gittensory_miner_\w+)"/g)]
+    .map((m) => m[1])
+    .filter((name): name is string => name !== undefined);
+  expect(names.length).toBeGreaterThan(0);
+  return names;
+}
+
+describe("miner MCP tool documentation parity (#5162)", () => {
+  it("documents every registered tool in the README, and documents nothing else", () => {
+    const registered = registeredMinerMcpToolNames();
+    const readme = readFileSync(README_PATH, "utf8");
+    const mcpSection = readme.slice(readme.indexOf("## MCP server"), readme.indexOf("## Version check"));
+
+    for (const name of registered) {
+      expect(mcpSection).toContain(`\`${name}\``);
+    }
+
+    const documented = [...mcpSection.matchAll(/`(gittensory_miner_\w+)`/g)]
+      .map((m) => m[1])
+      .filter((name): name is string => name !== undefined);
+    for (const name of documented) {
+      expect(registered).toContain(name);
+    }
+  });
+
+  it("documents the excluded-column safety property for the ledger/governor tools", () => {
+    const readme = readFileSync(README_PATH, "utf8");
+    const mcpSection = readme.slice(readme.indexOf("## MCP server"), readme.indexOf("## Version check"));
+    expect(mcpSection).toContain("payload_json");
+  });
+
+  it("relates AMS's local MCP tools to the hosted gittensory-mcp tools", () => {
+    const readme = readFileSync(README_PATH, "utf8");
+    const mcpSection = readme.slice(readme.indexOf("## MCP server"), readme.indexOf("## Version check"));
+    expect(mcpSection).toContain("local SQLite");
+    expect(mcpSection).toContain("hosted");
+  });
+
+  it("is cross-referenced from the coding-agent-driver doc", () => {
+    const doc = readFileSync(CODING_AGENT_DRIVER_DOC_PATH, "utf8");
+    expect(doc).toContain("../README.md#mcp-server");
+  });
+});