feat(mcp): MCP tool + maintain CLI for contributor-issue-draft generation

[reyanthony062001-ops]

What

POST /v1/repos/:owner/:repo/contributor-issue-drafts/generate was web-dashboard-only — no MCP tool and no CLI could reach it. This adds both mirrors the issue asks for:

• loopover_generate_contributor_issue_drafts in src/mcp/server.ts, requireRepoManageAccess-gated.
• maintain generate-issue-drafts [--create] [--limit N] --repo owner/repo CLI in packages/loopover-mcp/bin/loopover-mcp.js.

Create-safety, preserved identically on both surfaces

The whole risk here is silently opening issues, so both mirrors reproduce the route's guard exactly:

• Dry-run by default. The MCP dryRun/create/limit schema mirrors the route's contributorIssueDraftGenerateSchema byte-for-byte (same defaults, same 1–20 bound). The CLI sends {create:false, dryRun:true} for a bare invocation.
• create alone never writes. The MCP handler re-applies the route's explicit_create_requires_dry_run_false guard: a caller must pass both create:true and dryRun:false. The CLI's --create maps to exactly that {create:true, dryRun:false} shape — the only shape the route accepts for a real write.
• The service itself still overlays the global agent kill-switch (a paused/frozen agent can't create even with {create:true, dryRun:false}), and the write path requires repo write access.
• The MCP tool returns only the counts + posture (proposed/created/skipped*), never the per-draft title/body — the same public-safe scrub getAgentAuditFeed uses. The CLI's plain-text path sanitizes the generated draft titles for the terminal (fix(mcp): ANSI/control-char terminal sanitization is applied to exactly one output path, not the others that also print third-party text #6261).

requireRepoManageAccess is checked first, before the guard or the service.

Testing

• test/unit/mcp-generate-contributor-issue-drafts.test.ts (new, 5 cases): dry-run preview returns counts and omits drafts[]; create:true without dryRun:false is rejected (explicit_create_requires_dry_run_false); a static MCP-token caller is denied without MCP_ACTUATION_REPO_ALLOWLIST; an operator session is admitted and attributed; and the tool's structuredContent equals a direct service call for identical input (surface parity).
• test/unit/mcp-cli-maintain.test.ts (2 cases): a bare command forwards {create:false, dryRun:true} and strips an ANSI escape from a draft title; --create --limit 3 forwards {create:true, dryRun:false, limit:3} and renders the created issue link.
• The CLI harness gains a request-reflecting fixture so the test asserts the exact body each surface sends. The PowerShell-completion assertion is extended for the new subcommand.

Patch coverage measured, not assumed: every changed line and branch in src/mcp/server.ts is covered — 0 uncovered statements, 0 uncovered branches (packages/loopover-mcp/bin/** is outside vitest.config.ts's coverage scope, so the CLI is exercised for correctness rather than the gate).

Green locally at this base (ad8536e): typecheck, build --workspace @loopover/engine, build:mcp, test:mcp-pack, command-reference:check, docs:drift-check, manifest:drift-check, and the full blast radius of 40 test files (311 tests) touching the changed symbols.

Resubmit of #6976 (auto-closed on a mechanical base-branch conflict; CI was 16/16 green). Rebased onto current main with the conflict resolved.

Closes #6757

[superagent-security]

Superagent didn't find any vulnerabilities or security issues in this PR.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.73%. Comparing base (99b461d) to head (3f35772).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7019   +/-   ##
=======================================
  Coverage   93.72%   93.73%           
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  Files         690      690           
  Lines       68560    68571   +11     
  Branches    18743    18745    +2     
=======================================
+ Hits        64261    64273   +12     
  Misses       3302     3302           
+ Partials      997      996    -1     

Flag	Coverage Δ
shard-1	43.83% <100.00%> (+0.19%)	⬆️
shard-2	36.90% <27.27%> (-0.01%)	⬇️
shard-3	33.14% <27.27%> (-0.01%)	⬇️
shard-4	34.23% <27.27%> (-0.01%)	⬇️
shard-5	31.89% <27.27%> (-0.01%)	⬇️
shard-6	45.80% <27.27%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/mcp/server.ts	96.41% <100.00%> (+0.14%)	⬆️

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Tip

✅ LoopOver review result - approve/merge recommended

_{Review updated: 2026-07-17 18:25:29 UTC}

6 files · 1 AI reviewer · no blockers · readiness 77/100 · CI green · clean

✅ Suggested Action - Approve/Merge

• safe to merge

Review summary
This PR adds an MCP tool and CLI mirror for the existing contributor-issue-drafts/generate REST route, reproducing the route's create-safety guard (explicit_create_requires_dry_run_false) in the MCP handler and forwarding the same shape from the CLI. The MCP tool correctly scrubs draft title/body from its output, returning only counts/posture, and the CLI sanitizes drafts for terminal output per #6261. Logic is straightforward delegation to the existing service with parity tests confirming numeric output matches direct service calls.

Nits — 5 non-blocking

• src/mcp/server.ts: the `20`/`5` limit bounds are copied inline from the route schema rather than importing a shared constant, risking future drift if one side changes without the other.
• packages/loopover-mcp/bin/loopover-mcp.js generate-issue-drafts: `--limit` is parsed with `Number(options.limit)` and only included if `Number.isFinite`, so a non-numeric `--limit` silently omits the param instead of erroring — verify this matches other CLI subcommands' handling of bad numeric flags.
• test/unit/mcp-generate-contributor-issue-drafts.test.ts: good coverage of the safety guard and allowlist denial, but there's no test asserting the MCP tool caller identity (`requestedBy`) is actually threaded into the service call for the token-based path.
• Extract the `1`/`20` limit bounds and `5` default into a shared constant imported by both the REST route and `generateContributorIssueDraftsShape` to guarantee they can't drift apart (src/mcp/server.ts:641-649).
• Consider a small doc comment or shared type re-export so the MCP output schema and the CLI's expected JSON shape don't need to be kept in sync by hand across three files.

Decision drivers

• ✅ Code review — No blockers (1 reviewer)
• ✅ Gate result — Passing (No configured blocker found.)

Context & advisory signals — never blocks the verdict

Signal	Result	Evidence
Linked issue	✅ Linked	#6757
Related work	⚠️ 2 scoped overlaps	Top overlaps are listed below; lower-confidence bulk is hidden.
Change scope	❌ 8/20	High review scope from cached public metadata (1 linked issue).
Validation posture	✅ 25/25	PR body includes validation/test evidence.
Contributor workload	✅ 10/10	Author activity: 41 registered-repo PR(s), 27 merged, 0 issue(s).
Contributor context	✅ Confirmed Gittensor contributor	reyanthony062001-ops; Gittensor profile; 41 PR(s), 0 issue(s).
Improvement	✅ Minor	risk: clean · value: minor · LLM: moderate

Linked issue satisfaction

Addressed
The PR adds the requested loopover_generate_contributor_issue_drafts MCP tool (requireRepoManageAccess-gated, mirroring dryRun/create schema and re-applying the explicit_create_requires_dry_run_false guard) and a `maintain generate-issue-drafts [--create]` CLI subcommand, plus a dedicated unit test file explicitly asserting the create-without-dryRun:false rejection and dry-run defaults.

Review context

• Author: reyanthony062001-ops
• Role context: outside_contributor
• Public audience mode: oss maintainer
• Lane context: Repository is configured for direct PR review.
• Public profile languages: Cuda, HTML, JavaScript, Python, TypeScript
• Official Gittensor activity: 41 PR(s), 0 issue(s).
• Related work: Titles/paths share 6 meaningful terms. (issue #6744, issue #6757)
• Related work: Titles/paths share 6 meaningful terms. (issue #6746, issue #6757)

Contributor next steps

• Start here: Review top overlaps.
• Then work through the remaining 3 steps in the Signals table above.

Signal definitions

• Related work = same linked issue, overlapping active PRs, or title/path similarity.
• Change scope = cached public metadata such as size labels, draft state, and review-burden hints.
• Validation posture = whether the PR provides enough public validation/test evidence for maintainer review.
• Contributor workload = public contributor activity and cleanup pressure, not a repo-wide quality failure.
• Contributor context = public GitHub/Gittensor identity context; non-Gittensor status is not a blocker.

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_{🟩 Safe / merged · 🟦 Advisory · 🟨 Held for review · 🟥 Blocked / closed}

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LoopOver approves — the gate is satisfied and CI is green.