PR Babysitter
openinterpreter/openinterpreter
Watches an open GitHub pull request until it merges, handling review comments, diagnosing CI failures and retrying flaky checks along the way.
Finds real correctness bugs in code changes. An agent skill from getsentry/warden.
Install Code Review
$ npx skills add getsentry/warden --skill code-review -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install getsentry/warden code-review --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/getsentry/warden.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/warden/src/builtin-skills/code-review .claude/skills/code-review && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "code-review" agent skill from https://github.com/getsentry/warden/tree/main/packages/warden/src/builtin-skills/code-review into .claude/skills/code-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-review", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/getsentry/warden/tree/main/packages/warden/src/builtin-skills/code-reviewType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add getsentry/warden --skill code-review -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install getsentry/warden code-review --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/getsentry/warden.git skills-src && mkdir -p .agents/skills && cp -r skills-src/packages/warden/src/builtin-skills/code-review .agents/skills/code-review && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "code-review" agent skill from https://github.com/getsentry/warden/tree/main/packages/warden/src/builtin-skills/code-review into .agents/skills/code-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-review", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add getsentry/warden --skill code-review -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install getsentry/warden code-review --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/getsentry/warden.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/packages/warden/src/builtin-skills/code-review .cursor/skills/code-review && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "code-review" agent skill from https://github.com/getsentry/warden/tree/main/packages/warden/src/builtin-skills/code-review into .cursor/skills/code-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-review", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/getsentry/warden.git --path packages/warden/src/builtin-skills/code-review--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add getsentry/warden --skill code-review -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install getsentry/warden code-review --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/getsentry/warden.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/packages/warden/src/builtin-skills/code-review .gemini/skills/code-review && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "code-review" agent skill from https://github.com/getsentry/warden/tree/main/packages/warden/src/builtin-skills/code-review into .gemini/skills/code-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-review", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install getsentry/warden code-reviewInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add getsentry/warden --skill code-review -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/getsentry/warden.git skills-src && mkdir -p .github/skills && cp -r skills-src/packages/warden/src/builtin-skills/code-review .github/skills/code-review && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "code-review" agent skill from https://github.com/getsentry/warden/tree/main/packages/warden/src/builtin-skills/code-review into .github/skills/code-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-review", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add getsentry/warden --skill code-review -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install getsentry/warden code-review --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/getsentry/warden.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/packages/warden/src/builtin-skills/code-review .opencode/skills/code-review && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "code-review" agent skill from https://github.com/getsentry/warden/tree/main/packages/warden/src/builtin-skills/code-review into .opencode/skills/code-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "code-review", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
code-review- GitHub stars
- 414
- Token cost
- ~1.9k tokens
- SKILL.md length
- 953 words
- Files
- 6 (incl. references)
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Finds real correctness bugs in code changes. An agent skill from getsentry/warden.
- Works in 7 steps: Read the changed hunk and enough… → Identify the contract: caller… → Construct adversarial cases: null or… → …
- Adversarial code review
- SKILL.md covers References, Bugs Only Rule, Investigation Process and What To Report, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Code Review is an agent skill from getsentry/warden, published by the product's own GitHub organization. Finds real correctness bugs in code changes. Use for adversarial code review, bug hunts, regression review, PR correctness review, logic errors, data loss, race conditions, state bugs, interface contract breaks, error handling bugs, edge cases, broken builds, or broken workflows. Excludes style, readability, architecture, AppSec, and best-practice-only feedback unless the issue causes a demonstrable bug.
Its SKILL.md is about 1.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `SOURCES.md`, `SPEC.md` and `references/github-workflows.md`).
It sits in Development, covering Code review, Failing and flaky tests and Pull requests. It works with Python. The repository describes itself as: Your code is under new management. Agents that review your code.
When your agent uses it
- Adversarial code review
- Regression review
- PR correctness review
- Race conditions
Example prompts
- “Use the code-review skill to find real correctness bugs in code changes. An agent skill from getsentry/warden”
- “/code-review”
Requirements
- Python 3
- Pre-approved tools (allowed-tools): Read, Grep, Glob
Workflow steps
7 steps, taken from the first numbered list in SKILL.md.
- Read the changed hunk and enough surrounding code to understand the intended behavior.
- Identify the contract: caller expectations, public types, schemas, validation, docs, tests, persistence shape, API response shape…
- Construct adversarial cases: null or undefined, empty collections, zero, false, empty string, duplicates, missing keys, boundary counts…
- Trace data and state across imports, wrappers, validators, serializers, database writes, caches, queues, and dependent call sites.
- Compare old and new behavior when the diff changes a condition, default, type, schema, query, ordering, side effect, or error path.
- Check whether tests, types, schemas, framework guarantees, or caller guards already exclude the failure.
- Report only defects that survive this verification.
What it can do on your machine
Read from SKILL.md and the folder at commit 1ee135e. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadGrepGlob
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Code Review loads about 1.9k tokens when it runs, and up to ~5.6k if it reads all its reference files. Until then it costs about 105 tokens; SKILL.md has 953 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 953 words (~1,867 tokens).
“You are an extremely adversarial production code reviewer finding only real bugs in code changes. Try to break the changed behavior from every reachable angle, but report nothing unless the failure is concrete, reproducible from the code, and would cause…”
- name
- code-review
- allowed-tools
- Read, Grep, Glob
Files
SKILL.md and 5 other files (references) in packages/warden/src/builtin-skills/code-review of getsentry/warden.
- SKILL.md
- SOURCES.md
- SPEC.md
- references/github-workflows.md
- references/javascript-typescript.md
- references/python.md
Open the folder on GitHubat commit 1ee135e
Compare with similar skills
Code Review next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Code Review this skillgetsentry/warden | 414 | — | ~1.9k | Automated safety check: Pass | Custom licence | |
| PR Babysitteropeninterpreter/openinterpreter | 69k | 3 repos | ~4.2k | Automated safety check: Pass | Apache-2.0 | |
| Code Review Skillawesome-skills/code-review-skill | 2.1k | — | ~2.8k | Automated safety check: Notes | MIT | |
| Docling Pull Request Reviewdocling-project/docling | 68k | — | ~1k | Automated safety check: Pass | MIT | |
| Code Reviewerjewbetcha/opentrace | 116 | 2 repos | ~1.1k | Automated safety check: Notes | MIT | |
| Code Graph RAG Pull Request Reviewvitali87/code-graph-rag | 5.2k | — | ~685 | Automated safety check: Pass | MIT |
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Categories
Questions about Code Review
What does Code Review do?
Finds real correctness bugs in code changes. An agent skill from getsentry/warden. Code Review is an agent skill from getsentry/warden, published by the product's own GitHub organization. Finds real correctness bugs in code changes.
When should I use Code Review?
Code Review fits situations like: adversarial code review; regression review; PR correctness review; race conditions.
How do I install Code Review in Claude Code?
Run `npx skills add getsentry/warden --skill code-review -a claude-code`. Or copy the skill folder (packages/warden/src/builtin-skills/code-review in getsentry/warden) into .claude/skills/code-review in your project. Claude Code loads it when a task matches its description.
How do I install Code Review in Codex?
Run `npx skills add getsentry/warden --skill code-review -a codex`. Or copy the skill folder (packages/warden/src/builtin-skills/code-review in getsentry/warden) into .agents/skills/code-review in your project. Codex loads it when a task matches its description.
Can I use Code Review in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add getsentry/warden --skill code-review -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/code-review, .gemini/skills/code-review, .github/skills/code-review and .opencode/skills/code-review in your project.
What does Code Review need to run?
SKILL.md names no scripts, command-line tools or credentials: Code Review is instructions for the agent only. Our summary lists: Python 3. Its frontmatter pre-approves these tools: Read, Grep, Glob.
Does Code Review access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Code Review safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Code Review use?
Code Review has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Code Review use?
About 1.9k tokens (SKILL.md is roughly 7.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 3.7k tokens, read only when the agent opens those files.
What are the alternatives to Code Review?
Skills that share tags, products or a category with Code Review: PR Babysitter (openinterpreter/openinterpreter, 69k stars), Code Review Skill (awesome-skills/code-review-skill, 2.1k stars), Docling Pull Request Review (docling-project/docling, 68k stars) and Code Reviewer (jewbetcha/opentrace, 116 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Code Review?
getsentry (a GitHub organization, an official publisher) maintains it in getsentry/warden, which has 414 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on September 30, 2026.
Source: getsentry/warden on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.