feat(ocm): let the assistant clone repos through POST /repos

[chriswritescode-dev]

Summary

Lets the assistant add a repository by cloning a git URL through the ocm tool, instead of asking the user to do it in the UI.

• New internal route POST /api/internal/repos with body { repoUrl, branch?, directoryName? }, validated by InternalCloneRepoRequestSchema (strict, so unknown keys such as localPath are rejected). It delegates to the existing cloneRepo service, so URL normalization, SSH setup, dedupe of an already-registered URL/branch, the 409 directory-collision check, and rollback on failure match the UI's "Add repository" flow.
• POST /repos added to the ocm tool allow-list and description.
• createInternalRoutes now receives GitAuthService.
• The repo-management assistant skill documents the endpoint, replacing the old "repos are read-only" note. The installed skill refreshes automatically via its content hash.

Deliberate scope limits:

• Remote clone only. Registering a local path (localPath) or creating worktrees is not exposed, since it would let an agent register arbitrary host directories and worktree setup needs the terminal/project-config services.
• The tool request times out after 60s, while a clone can run up to 5 minutes and keeps going server-side. The repo appears in GET /repos with cloneStatus: 'cloning' immediately, and the skill tells the assistant to poll until it is ready.

Type of Change

• Bug fix
• New feature
• Refactor
• Documentation

Checklist

• Code follows project style (no comments, named imports)
• TypeScript types are properly defined
• Tests added/updated (80% coverage target)
• pnpm lint passes locally
• pnpm typecheck passes locally

Tests: new cases in backend/test/routes/internal-repos.test.ts (401 without token, 400 for missing repoUrl / unknown keys / invalid JSON, existing repo returned without cloning). Root pnpm test passes locally: CLI 279/279, backend 46/46 (bun) and 3128/3128 (vitest with coverage), frontend 2162/2162.

Summary by CodeRabbit

• New Features
  • Added the ability to clone repositories from HTTPS or SSH URLs, with optional branch and directory name.
  • Existing repositories matching the requested URL and branch can be reused instead of cloned again.
  • The assistant can now clone repositories when requested and check repository status after a delayed response.
• Bug Fixes
  • Invalid clone requests are rejected, and clone failures return an appropriate error response.

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⚙️ Run configuration

• Configuration used: Repository UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: b770f403-2230-458f-ae60-d8277b73a640

📥 Commits

Reviewing files that changed from the base of the PR and between c9be507 and 5138cd6.

📒 Files selected for processing (1)

• backend/src/services/assistant-mode.ts

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📝 Walkthrough

Walkthrough

The internal API now supports repository cloning through POST /repos. The route validates clone requests and passes valid input to cloneRepo with GitAuthService. The assistant repository skill and manager tool now expose the endpoint and describe its request fields.

Changes

Internal repository cloning

Layer / File(s)	Summary
Validate and process clone requests shared/src/schemas/repo.ts, backend/src/routes/internal/repos.ts, backend/src/routes/internal/index.ts, backend/src/index.ts, backend/test/routes/internal-repos.test.ts, backend/test/routes/internal-*.test.ts	The internal route factory receives GitAuthService. POST /repos validates JSON and schema input, then passes valid input to cloneRepo. Tests cover missing authentication, invalid requests, and reuse of an existing repository. Other internal route test setups now pass a GitAuthService stub.
Expose cloning to the assistant backend/src/services/assistant-mode.ts, backend/src/services/opencode-manager-tool-plugin.ts, backend/test/services/assistant-mode.test.ts	The repository skill documents POST /repos, its request fields, and clone behavior. The manager tool allows the route and describes its request body.

Priority: ⬇️ Low

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant Client
  participant InternalRepoRoute
  participant InternalCloneRepoRequestSchema
  participant cloneRepo
  Client->>InternalRepoRoute: POST /repos with clone request
  InternalRepoRoute->>InternalCloneRepoRequestSchema: Validate request
  InternalRepoRoute->>cloneRepo: Pass valid fields and GitAuthService
  cloneRepo-->>InternalRepoRoute: Return clone result or error
  InternalRepoRoute-->>Client: Return HTTP response

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Merge Risk: 🔵 Low · up to c9be5

The assistant's repository-cloning guidance can mislead it after a timed-out clone, since a retry may return a repository that is still cloning. This is a documentation fix and low risk, so it can be addressed alongside or after merge.

Security Architecture Review

Security architecture risk: 🟠 High · up to c9be5

The new cloning capability can reach destructive filesystem behavior outside the intended repository directory. It also accepts local Git sources despite being described as remote-only. Authentication remains intact, but these operations execute with the server’s permissions rather than the assistant’s filesystem restrictions.

Retained concerns

• High · security · inferred: The newly permitted clone operation exposes recursive deletion beyond a single repository. With directoryName omitted, inputs such as https://example.com/. or https://example.com/.. produce default names that sanitizeRepoDirectoryName preserves. These resolve to the repositories root or its workspace parent. If no existing URL/branch row short-circuits the request and the selected directory fails Git validation, cloneRepo recursively removes it before attempting the remote clone. Explicit directoryName validation and the 409 origin check do not cover this path. The underlying behavior predates the PR, but the assistant tool gains a direct route to it.
• Medium · security · inferred: The remote-only boundary is not enforced through repoUrl. The strict schema rejects localPath as a key but accepts any nonempty repoUrl, and cloneRepo passes unrecognized values unchanged to Git. An authenticated assistant call can therefore supply an absolute host Git-repository path or file URL for server-side cloning into the managed tree, subject to server read permissions and Git transport policy. This copies repository content rather than registering an arbitrary directory, but still exceeds the stated remote-only scope. The existing UI already invoked this service; this PR adds the assistant-facing operation.

Security review details

Security Blast Radius

• inferred — Attackable scope is bounded by access to the cloning tool or a valid internal token and by backend filesystem permissions, not merely one assistant repository. A dot-dot-derived destination can select the workspace containing repositories, configuration and OpenCode state. Local-source cloning is limited to Git repositories the backend can read; arbitrary-file disclosure, cross-tenant access and credential extraction are not established.

Security Findings and Attack Paths

• inferred — An attacker able to influence an authorized clone call can omit directoryName and supply a URL ending in a dot segment. The segment becomes a destination name, selects a shared directory and reaches recursive deletion if Git validation fails. Remote existence is not checked before deletion. A registered URL/branch or a valid Git target with a different origin can stop this path; authentication prevents unauthenticated invocation.

Trust Boundaries and Controls

• observed — The new operation retains the shared internal-token principal rather than introducing user-scoped authorization. Its route forwards source and destination choices to backend-owned Git authentication. The strict schema excludes worktree controls and skipSSHVerification, but instruction text to clone only user-requested repositories is guidance rather than an authorization check.

Resilience and Maintainability Implications

• inferred — The newly used clone lifecycle inherits pre-existing shared SSH key, passphrase and port fields. Setup awaits verification, while every clone finally cleans the current shared key. Concurrent operations therefore lack per-operation credential ownership and can interfere with authentication or cleanup. Host-based credential selection and host verification are counterevidence against unrestricted credential use; cross-host credential misuse was not demonstrated.

Hardening Proposals

• proposed — Apply the same validated-name rules to derived and explicit destinations, enforce canonical containment strictly below the repositories root, and restrict deletion to directories owned by the current clone operation. Enforce the intended remote transport contract before filesystem mutation.
• proposed — Use an operation-owned clone reservation and authentication context so retries attach to the existing operation, cleanup cannot remove another operation’s credentials or registration, and interrupted clones have explicit terminal and recovery states.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 16 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: enabling the assistant to clone repositories through POST /repos.
Description check	✅ Passed	The description includes the required Summary, Type of Change, and Checklist sections. It explains the implementation and scope, marks the new feature and checklist items, and reports tests and valida…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

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Inline comments:
Review comments at @backend/src/services/assistant-mode.ts:
- Line 920: Update the cloneRepo response description to allow cloneStatus
values of both ready and cloning, and instruct the assistant to poll until
cloning finishes before using the repository.

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ℹ️ Review info

⚙️ Run configuration

• Configuration used: Repository UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: 7eed914f-d347-49db-99c0-111fa75fcdf5

📥 Commits

Reviewing files that changed from the base of the PR and between 33be4af and c9be507.

📒 Files selected for processing (16)

• backend/src/index.ts
• backend/src/routes/internal/index.ts
• backend/src/routes/internal/repos.ts
• backend/src/services/assistant-mode.ts
• backend/src/services/opencode-manager-tool-plugin.ts
• backend/test/routes/internal-assistant.test.ts
• backend/test/routes/internal-notifications.test.ts
• backend/test/routes/internal-opencode-config.test.ts
• backend/test/routes/internal-opencode-workspaces.test.ts
• backend/test/routes/internal-repos.test.ts
• backend/test/routes/internal-sandbox.test.ts
• backend/test/routes/internal-schedules.test.ts
• backend/test/routes/internal-sessions.test.ts
• backend/test/routes/internal-settings.test.ts
• backend/test/services/assistant-mode.test.ts
• shared/src/schemas/repo.ts

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