docs: satisfy v0.3.2 docstring review gate

[mohanagy]

Summary

• document the three named methods identified by CodeRabbit’s v0.3.2 pre-merge docstring check
• preserve runtime behavior and the organization-level review policy

Security impact

• None. This is documentation-only: no executable logic, public declaration, secret handling, policy decision, timeout, or process-containment behavior changes.

Validation

• npm ci --dry-run --ignore-scripts
• npm run lint
• npm run typecheck
• git diff --check
• CI run 29823519981: Linux quality; Ubuntu, macOS, and Windows Node 20/22/24; and Verify all passed on 17d3487. The initial Windows Node 24 timeout was rerun on the same immutable head and passed; recurrence is tracked separately in bug: make Windows secret-provider cold start reliable #115.
• CodeRabbit full review completed with no actionable comments and approved this PR.

Refs #156

[coderabbitai]

📝 Walkthrough

Walkthrough

Adds documentation comments for MiftahServer shutdown and upstream tool handling, plus policy enforcement error behavior. No executable logic or public declarations changed.

Changes

MCP operation documentation

Layer / File(s)	Summary
Document server and policy behavior src/mcp/server/miftah-server.ts, src/mcp/server/operation-pipeline.ts	Comments describe shutdown scope and failure preservation, upstream tool routing and execution, and safe policy errors when enforcement blocks an operation.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related issues

• ci: satisfy CodeRabbit docstring coverage for v0.3.2 promotion #156 — Directly covers adding documentation for the same three methods.

Possibly related PRs

• mohanagy/miftah#47 — Documents behavior associated with deterministic tool registration and upstream routing.
• mohanagy/miftah#70 — Documents behavior from the expanded MCP protocol proxy surface.
• mohanagy/miftah#118 — Also concerns MiftahServer.close() shutdown behavior.

Poem

A rabbit reads comments, neat and bright,
Shutdown paths now shine in sight.
Tools find routes and policies stand,
Safe errors wait with careful hand.
No code hopped—just docs took flight!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.
Title check	✅ Passed	The title is concise and accurately reflects the docstring-focused change.
Description check	✅ Passed	The description includes the required summary, security impact, and validation sections with relevant details.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/156-coderabbit-docstrings

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[mohanagy]

@coderabbitai full review

[coderabbitai]

✅ Action performed

Full review finished.

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[mohanagy]

@coderabbitai full review

[coderabbitai]

✅ Action performed

Full review finished.

[mohanagy]

Addressed the review metadata warning: the PR description now states the security impact and exact validation evidence.

CodeRabbit also reported an ESLint sandbox-install timeout. That is demonstrably a reviewer-sandbox limitation, not a repository lint failure: the exact same head passed GitHub Actions Linux quality, including dependency installation and npm run lint, plus typecheck, tests, coverage, build, CLI smoke test, and package checks. No CodeRabbit configuration is being disabled or weakened. The completed full review has no actionable comments and is approved.