CI: register inline-comment MCP tool for claude-code-review

[jnasbyupgrade]

Summary

• claude-code-review.yml's review step drives claude-code-action with a bare prompt: (no @claude mention), which runs the action in "agent mode." In that mode the action decides which MCP servers to start from an --allowedTools flag inside claude_args, not from the invoked plugin's own allowed-tools frontmatter. Without mcp__github_inline_comment__create_inline_comment listed there, that MCP server never started, so the code-review plugin silently fell back to a single consolidated PR comment instead of real per-line inline comments — no error, no warning, just the wrong output shape. Fixed by adding claude_args: '--allowedTools mcp__github_inline_comment__create_inline_comment'.

Investigated, not changed

• Considered adding permissions: actions: write to let the job's internal cache-save step (inside claude-code-action's own setup) succeed instead of emitting a Cache reservation failed: cache write denied: token has no writable scopes warning. Checked a sibling repo's identical review workflow that already grants actions: write: the warning still appears in its runs both immediately after that permission was added and in its most recent run — so the permission does not actually resolve the warning in practice. Not adding it here since it wouldn't fix anything and would only grant unused, broader privileges (cancelling/deleting workflow runs, managing artifacts).

Test plan

• Validated YAML syntax locally
• Diff confined to .github/workflows/claude-code-review.yml
• Watch this PR's own CI run (note: pull_request_target always runs the workflow from master, so this PR's own check reflects the OLD workflow, not this change — verification of the MCP fix happens on a subsequent PR after merge)

🤖 Generated with Claude Code

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