feat(api): mirror loopover_propose_action to REST and the CLI

[real-venus]

Summary

The loopover_propose_action MCP tool stages a new pending agent action for later maintainer approval
(it never auto-executes). REST already had the list side (GET .../agent/pending-actions) and the
decision side (POST .../agent/pending-actions/:id/:decision), both CLI-mirrored — but no way to
create a staged action over REST/CLI. This completes the create/list/decide trio.

• POST /v1/repos/:owner/:repo/agent/pending-actions — a plain create route, requireRepoWriteAccess-gated
  exactly like its sibling decision route. It mirrors the proposeAction MCP handler verbatim: resolve the
  repo's installation (409 app_not_installed if the App isn't installed), pin the staged action to the PR's
  current head SHA (the same force-push freshness guard proposeAction sets, fix(mcp): gittensory_propose_action stages actions with no expectedHeadSha, disabling the force-push guard #2255), then
  createPendingAgentActionIfAbsent at auto_with_approval. It returns the identical
  { created, action: { id, actionClass, pullNumber, status, reason } } shape the tool returns, and only
  stages an action — it never executes one. A zod schema mirroring proposeActionShape (minus the
  path-param owner/repo) rejects a malformed body with 400 invalid_propose_action_request.
• loopover-mcp maintain propose <action-class> <pull-number> — the CLI subcommand, alongside the
  existing status/queue/approve/reject. Posts to the bare create path, supports
  --reason/--label/--review-body/--merge-method/--close-comment + --json, validates the action class
  (the 7-value propose set, incl. review_state_label) and pull number before any request, and sanitizes
  every API-echoed field on the plain-text path.

Like every sibling agent/pending-actions route, it is deliberately omitted from the OpenAPI spec.

Closes #6744

Scope

• The PR title follows type(scope): short summary Conventional Commit format.
• This PR is focused and does not mix unrelated backend, UI, MCP, docs, dependency, and deploy changes.
• This follows CONTRIBUTING.md and does not reintroduce GitHub Pages, VitePress, site/, or CNAME.
• I linked a currently open issue this PR resolves (Closes #6744).

Validation

• npm run typecheck
• npm run build:mcp (node --check)
• npm run command-reference:check / npm run ui:openapi — no diff (local maintain subcommands aren't in the generated command catalog; mirror routes aren't in the OpenAPI spec)
• git diff --check
• npx vitest run test/unit/routes-agent-approval.test.ts test/unit/mcp-cli-maintain.test.ts (66 passing)
• Verified 100% statement + branch coverage on every changed line in src/api/routes.ts (the only Codecov-measured file in this diff) via coverage-final.json — every optional-param branch (present/absent), the head-SHA pin (present/absent), the schema-reject, and the not-installed arm.

Safety

• No secrets, wallet details, hotkeys, coldkeys, user PATs, private keys, raw trust scores, private rankings, or private maintainer evidence are exposed.
• Public GitHub text stays sanitized, low-noise, and does not imply compensation guarantees or optimization tactics. — the CLI runs every API-echoed field through sanitizePlainTextTerminalOutput; --json stays raw (JSON.stringify escapes control chars).
• Auth, cookie, CORS, GitHub App, Cloudflare, or session changes include negative-path tests. — the route is requireRepoWriteAccess-gated like the decision route; a non-maintainer session gets 401/403 (tested), and the coarse-allowlist comment is updated to reflect the new write-gated POST on the shared path.
• API/OpenAPI/MCP behavior is updated and tested where needed. — new route tested for parity + every branch; deliberately no OpenAPI entry (matches all sibling pending-actions routes).
• No visible UI changes (REST route + CLI subcommand only), so no UI Evidence section is required.
• Public docs/changelogs: --help documents the new subcommand; no changelog edited.

Notes

• No new business logic or decision surface: the route reuses the same pure createPendingAgentActionIfAbsent
  path the MCP tool calls, with the same write gate and head-SHA pinning. It stages for approval only —
  execution stays exclusively on the existing accept path.
• The action-class enum is kept as a dedicated 7-value PROPOSE_ACTION_CLASSES in the CLI (a superset of the
  autonomy-configurable set-level list, adding review_state_label) so propose accepts exactly what the
  route + MCP tool accept.

[superagent-security]

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

[codecov]

Codecov Report

❌ Patch coverage is 15.00000% with 17 lines in your changes missing coverage. Please review.
✅ Project coverage is 87.01%. Comparing base (5347291) to head (98a1d77).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/api/routes.ts	15.00%	17 Missing ⚠️

❌ Your patch check has failed because the patch coverage (15.00%) is below the target coverage (99.00%). You can increase the patch coverage or adjust the target coverage.

❗ There is a different number of reports uploaded between BASE (5347291) and HEAD (98a1d77). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (5347291)	HEAD (98a1d77)
shard-6	1	0

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6939      +/-   ##
==========================================
- Coverage   93.71%   87.01%   -6.70%     
==========================================
  Files         685      685              
  Lines       68358    68377      +19     
  Branches    18726    18734       +8     
==========================================
- Hits        64059    59501    -4558     
- Misses       3302     7186    +3884     
- Partials      997     1690     +693     

Flag	Coverage Δ
shard-1	43.68% <10.00%> (-0.02%)	⬇️
shard-2	36.83% <10.00%> (-0.02%)	⬇️
shard-3	32.75% <10.00%> (-0.01%)	⬇️
shard-4	34.83% <10.00%> (-0.01%)	⬇️
shard-5	31.31% <15.00%> (-0.01%)	⬇️
shard-6	?

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

Files with missing lines	Coverage Δ
src/api/routes.ts	58.91% <15.00%> (-35.85%)	⬇️

... and 117 files with indirect coverage changes

[loopover-orb]

Caution

🛑 LoopOver review result - reject/close recommended

_{Review updated: 2026-07-17 14:48:00 UTC}

5 files · 1 AI reviewer · 1 blocker · CI failing · blocked

🛑 Suggested Action - Reject/Close

Review summary
This PR adds the missing CREATE side of the agent pending-actions REST/CLI trio (list and decide already existed), implemented as a new POST route that mirrors the loopover_propose_action MCP handler, plus a corresponding `maintain propose` CLI subcommand and fixture-harness wiring. The route logic (schema validation, app_not_installed 409, head-SHA pinning, requireRepoWriteAccess gate, idempotent createPendingAgentActionIfAbsent call) is well-traced and consistent with the sibling decision route, and the new tests cover the create/idempotent/validation/auth/not-installed paths. The main issue is codecov/patch failing at 15% against a 99% target, meaning large swaths of the new route and CLI code are not actually exercised by tests despite the added test files.

Blockers

• codecov/patch reports only 15.00% of the diff is covered (target 99%), meaning significant new logic in the propose route (src/api/routes.ts) and/or the CLI propose subcommand (packages/loopover-mcp/bin/loopover-mcp.js) is untested despite the added test files, so per this repo's coverage bar this is not merge-ready.

Nits — 5 non-blocking

• src/api/routes.ts: the 500/60000 length limits in proposePendingActionSchema are unexplained magic numbers duplicated from proposeActionShape — consider a shared constant or comment citing the MCP schema as the source of truth.
• packages/loopover-mcp/bin/loopover-mcp.js: `maintain propose` usage/help text should also link back to issue REST + CLI mirror for loopover_propose_action #6744 or the propose route doc comment for discoverability, matching the convention used elsewhere in this file.
• Confirm getPullRequest's headSha field name/shape matches what pr?.headSha expects — worth a quick verification since this is the force-push freshness guard's critical input.
• Investigate why codecov/patch is only at 15% given the added route + CLI + harness tests — likely some branches (e.g. the app_not_installed 409 path, or particular optional-param combinations) aren't hit; add targeted assertions rather than relying on the existing suite.
• Consider extracting the 500/60000 length caps into named constants shared between src/mcp/server.ts's proposeActionShape and this new schema to guarantee they can't drift apart silently.

Why this is blocked

• codecov/patch reports only 15.00% of the diff is covered (target 99%), meaning significant new logic in the propose route (src/api/routes.ts) and/or the CLI propose subcommand (packages/loopover-mcp/bin/loopover-mcp.js) is untested despite the added test files, so per this repo's coverage bar this is not merge-ready.

📋 Copy for AI agents — paste into your coding agent

Fix the following blocker(s) from this PR review:

1. codecov/patch reports only 15.00% of the diff is covered \(target 99%\), meaning significant new logic in the propose route \(src/api/routes.ts\) and/or the CLI propose subcommand \(packages/loopover-mcp/bin/loopover-mcp.js\) is untested despite the added test files, so per this repo's coverage bar this is not merge-ready.

CI checks failing

• validate
• codecov/patch — 15.00% of diff hit (target 99.00%)
• validate-tests (6)

Decision drivers

• ❌ Code review — 1 blocker (1 reviewer)
• ❌ Gate result — Blocking (Repo-configured hard blocker found.)

Context & advisory signals — never blocks the verdict

Signal	Result	Evidence
Linked issue	✅ Linked	#6744
Related work	⚠️ 3 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: 167 registered-repo PR(s), 90 merged, 20 issue(s).
Contributor context	✅ Confirmed Gittensor contributor	real-venus; Gittensor profile; 167 PR(s), 20 issue(s).
Improvement	✅ Minor	risk: clean · value: minor · LLM: moderate

Review context

• Author: real-venus
• Role context: outside_contributor
• Public audience mode: oss maintainer
• Lane context: Repository is configured for direct PR review.
• Public profile languages: TypeScript, JavaScript, Python, Rust, CSS, MDX, Svelte, Swift
• Official Gittensor activity: 167 PR(s), 20 issue(s).
• Related work: Titles/paths share 8 meaningful terms. (PR #6937)
• Related work: Titles/paths share 6 meaningful terms. (issue #6743)
• Related work: Titles/paths share 6 meaningful terms. (issue #6747)
• Additional title-only matches omitted; title-only overlap does not block.

Contributor next steps

• Start here: Review top overlaps.
• Then work through the remaining 2 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-orb]

LoopOver is closing this pull request on the maintainer's behalf (CI is failing (validate, codecov/patch, validate-tests (6)); AI reviewers agree on a likely critical defect: codecov/patch reports only 15.00% of the diff is covered (target 99%), meaning significant new logic in the propose route (src/api/routes.ts) and/or the CLI propose subcommand (packages/loopover-mcp/bin/loopover-mcp.js) is untested despite the added test files, so per this repo's coverage bar this is not merge-ready.). This is an automated maintenance action — to pursue this change, please open a new pull request with the issues resolved. Closed PRs may be analyzed later to improve review accuracy, but they are not automatically reopened or re-reviewed.