| name | crit |
| description | Review code changes, a plan, a live page (running dev server), or a local HTML file with crit inline comments. Use when asked to review code, a plan, a diff, a running web app, or when you want structured human feedback on your work. |
| argument-hint | [file|url] |
| agent | all |
Review with Crit
Review and revise code changes, plans, live pages (running dev servers, staging URLs), or local HTML files using crit for inline comment review.
Step 1: Pass arguments to crit
The CLI auto-detects the review mode from its arguments. Do not ask the user which mode to use. Pass arguments through:
crit <arguments> # file, dir, URL, .html — CLI auto-detects mode
crit --pr <num|url> # GitHub PR (range mode)
crit --range <base>..<head> # commit range (range mode)
crit # no args → branch diff
If no arguments, check conversation context:
- A plan file was written earlier in this conversation →
crit <plan-file>
- Otherwise → bare
crit (branch diff)
Step 2: Launch crit and block until review completes
CRITICAL — you MUST run this step. Do NOT skip it. Do NOT proceed without it.
Tell the user upfront: "Opening crit for review — leave inline comments in the browser and click Finish Review when done."
Then run crit via run_shell_command — it blocks until the user clicks "Finish Review", then the tool call completes:
crit <plan-file>
crit
If a crit server is already running from earlier in this conversation, crit automatically connects to it. Starting from scratch, it spawns the daemon, opens the browser, and blocks until the user clicks "Finish Review".
Do NOT proceed until run_shell_command returns. Do NOT ask the user to type anything. Do NOT read the review file early. The tool call completing is how you know the human is done reviewing.
Step 3: Read the review output
When crit completes, its stdout includes the path to the review file (e.g. "Review comments are in /path/to/review.json"). Read it with read_file.
The file contains structured JSON. Three comment types:
review_comments (top-level, r_-prefixed IDs) — general feedback
- File comments (per-file
comments array, no start_line/end_line) — about the file as a whole
- Line comments (per-file
comments array, with start_line/end_line) — about specific lines
Identify all comments where resolved is false or missing. Unresolved comments may have replies — read them before acting.
- `quote`: the specific text the reviewer selected — focus your changes on the quoted text rather than the entire line range
- `anchor`: use it to locate the current position of the content; line numbers may be stale after edits
- `drifted: true`: original content was removed or heavily rewritten — line numbers are approximate at best
Step 4: Address each review comment
For each unresolved comment:
- Understand what the comment asks for
- If it contains a suggestion block, apply that specific change
- Revise the referenced file (plan or code file from the diff) using
replace
- Reply with what you did:
crit comment --reply-to <id> --author 'Gemini' '<what you did>' (reply bodies support markdown)
- Do not pass
--resolve. Resolving is the reviewer's call. Only add --resolve if the user explicitly asks.
Editing the plan file triggers Crit's live reload — the user sees changes in the browser immediately.
Use `--json` for a single bulk call instead of one invocation per comment:
echo '[
{"reply_to": "c_a1b2c3", "body": "Fixed"},
{"reply_to": "c_d4e5f6", "body": "Refactored as suggested"}
]' | crit comment --json --author 'Gemini'
If there are zero review comments: inform the user no changes were requested and stop the background crit process.
Step 5: Signal completion and start next round
CRITICAL — you MUST run this step. Do NOT skip it. Do NOT proceed without it.
Run the exact same crit command from Step 2 via run_shell_command. The daemon is keyed by arguments — mismatched args spawn a new daemon instead of reconnecting. If Step 2 was crit plan.md, this must also be crit plan.md (not bare crit).
On subsequent calls, crit automatically signals round-complete first, then blocks until the next "Finish Review" click.
Tell the user: "Changes applied. Review the diff in your browser and click Finish Review when ready."
Do NOT proceed until run_shell_command returns. When it does, return to Step 3. If the user finishes with zero comments, the review is approved — stop the loop and proceed.
crit share <file>
Always relay the full output to the user — copy the URL (and QR code if --qr was used) directly into your response. Don't make them dig through tool output.
To remove a shared review:
crit unpublish [file...]
Only use `--qr` in real terminal environments with monospace rendering. Skip it in mobile apps or web chat UIs — Unicode block characters won't render.
crit share --qr <file>