Code Review
flutter/flutter
Performs a comprehensive, multi-step code review of pull requests or local code changes, using iterative refinement (generation, critique, synthesis) to ensure high-quality, actionable feedback.
Prepare a pull request by running presubmit with fixes. An agent skill from flutter/devtools.
Install Preparing PR
$ npx skills add flutter/devtools --skill preparing-pr -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install flutter/devtools preparing-pr --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/flutter/devtools.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/preparing-pr .claude/skills/preparing-pr && 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 "preparing-pr" agent skill from https://github.com/flutter/devtools/tree/master/.agents/skills/preparing-pr into .claude/skills/preparing-pr/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "preparing-pr", 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/flutter/devtools/tree/master/.agents/skills/preparing-prType 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 flutter/devtools --skill preparing-pr -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install flutter/devtools preparing-pr --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/flutter/devtools.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/preparing-pr .agents/skills/preparing-pr && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "preparing-pr" agent skill from https://github.com/flutter/devtools/tree/master/.agents/skills/preparing-pr into .agents/skills/preparing-pr/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "preparing-pr", 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 flutter/devtools --skill preparing-pr -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install flutter/devtools preparing-pr --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/flutter/devtools.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/preparing-pr .cursor/skills/preparing-pr && 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 "preparing-pr" agent skill from https://github.com/flutter/devtools/tree/master/.agents/skills/preparing-pr into .cursor/skills/preparing-pr/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "preparing-pr", 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/flutter/devtools.git --path .agents/skills/preparing-pr--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 flutter/devtools --skill preparing-pr -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install flutter/devtools preparing-pr --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/flutter/devtools.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/preparing-pr .gemini/skills/preparing-pr && 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 "preparing-pr" agent skill from https://github.com/flutter/devtools/tree/master/.agents/skills/preparing-pr into .gemini/skills/preparing-pr/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "preparing-pr", 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 flutter/devtools preparing-prInstalls 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 flutter/devtools --skill preparing-pr -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/flutter/devtools.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/preparing-pr .github/skills/preparing-pr && 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 "preparing-pr" agent skill from https://github.com/flutter/devtools/tree/master/.agents/skills/preparing-pr into .github/skills/preparing-pr/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "preparing-pr", 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 flutter/devtools --skill preparing-pr -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install flutter/devtools preparing-pr --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/flutter/devtools.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/preparing-pr .opencode/skills/preparing-pr && 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 "preparing-pr" agent skill from https://github.com/flutter/devtools/tree/master/.agents/skills/preparing-pr into .opencode/skills/preparing-pr/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "preparing-pr", 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
preparing-pr- GitHub stars
- 1.7k
- Token cost
- ~351 tokens
- SKILL.md length
- 175 words
- Files
- 1
- Skills in repo
- 10
- Repo updated
- First seen
- Licence
- BSD-3-Clause
At a glance
Prepare a pull request by running presubmit with fixes. An agent skill from flutter/devtools.
- Works in 4 steps: Verify dt configuration → Update Flutter SDK → Run Presubmit with Fixes → …
- Preparing to commit
- Calls git
- Tasks that involve Pull requests
What it does
Preparing PR is an agent skill from flutter/devtools. Prepare a pull request by running presubmit with fixes. Use when preparing to commit or send a PR.
Its SKILL.md is about 350 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Pull requests. It works with Flutter. The repository describes itself as: Developer tools for Flutter & Dart. The licence is BSD-3-Clause.
When your agent uses it
- Preparing to commit
- Tasks that involve Pull requests
Example prompts
- “/preparing-pr”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Verify dt configuration
- Update Flutter SDK
- Run Presubmit with Fixes
- Run Tests for Affected Code
What it can do on your machine
Read from SKILL.md and the folder at commit 3a3b64a. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
git
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.
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
Preparing PR loads about 351 tokens when it runs. Until then it costs about 28 tokens; SKILL.md has 175 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
The full file from flutter/devtools at commit 3a3b64a, republished under its BSD-3-Clause licence (© flutter). 175 words, ~351 tokens.
Download SKILL.mdSave it as
.claude/skills/preparing-pr/SKILL.md (or your agent's skills folder).- name
- preparing-pr
- description
- Prepare a pull request by running presubmit with fixes. Use when preparing to commit or send a PR.
Preparing a Pull Request
Follow these steps to prepare a pull request for DevTools:
- Verify
dtconfiguration:- Ensure
dtis available on the path by runningdt --helpor verifying its alias. - If not available, refer to the CONTRIBUTING guide for instructions on how to set up the
dtexecutable on your path.
- Ensure
- Update Flutter SDK:
- Run
dt update-flutter-sdkto ensure the SDK is up to date.
- Run
- Run Presubmit with Fixes:
- Run
dt presubmit --fixto address automated fixes. - If any issues remain or if the command fails, fix the issues manually and run
dt presubmit --fixagain to verify the fix.
- Run
- Run Tests for Affected Code:
- Use
git statusorgit diff upstream/masterto find changed files. - Run tests that are associated with the changed code. For example, if you edited
packages/devtools_app/lib/src/screens/logging/logging_screen.dart, run the logging tests underpackages/devtools_app/test/screens/logging/.
- Use
Verification
If any step fails, stop and address the issue, and then verify the issue is fixed before proceeding.
[!IMPORTANT] Do NOT commit or push changes without getting explicit user approval first.
© flutter, BSD-3-Clause. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .agents/skills/preparing-pr of flutter/devtools.
Open the folder on GitHubat commit 3a3b64a
Compare with similar skills
Preparing PR 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 |
|---|---|---|---|---|---|---|
| Preparing PR this skillflutter/devtools | 1.7k | — | ~351 | Automated safety check: Pass | BSD-3-Clause | |
| Code Reviewflutter/flutter | 179k | — | ~1.4k | Automated safety check: Pass | BSD-3-Clause | |
| Code Review Skillawesome-skills/code-review-skill | 2.1k | — | ~2.8k | Automated safety check: Notes | MIT | |
| Review PRhyochan/flutter_calendar_carousel | 860 | — | ~1.4k | Automated safety check: Pass | MIT | |
| Grix Code Reviewaskie/grix | 153 | — | ~799 | Automated safety check: Pass | Custom licence | |
| Frb Issue To Green PRfzyzcjy/flutter_rust_bridge | 5.4k | — | ~1.8k | Automated safety check: Pass | MIT |
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Related
Works with
Categories
Questions about Preparing PR
What does Preparing PR do?
Prepare a pull request by running presubmit with fixes. An agent skill from flutter/devtools. Preparing PR is an agent skill from flutter/devtools. Prepare a pull request by running presubmit with fixes.
When should I use Preparing PR?
Preparing PR fits situations like: preparing to commit; tasks that involve Pull requests.
How do I install Preparing PR in Claude Code?
Run `npx skills add flutter/devtools --skill preparing-pr -a claude-code`. Or copy the skill folder (.agents/skills/preparing-pr in flutter/devtools) into .claude/skills/preparing-pr in your project. Claude Code loads it when a task matches its description.
How do I install Preparing PR in Codex?
Run `npx skills add flutter/devtools --skill preparing-pr -a codex`. Or copy the skill folder (.agents/skills/preparing-pr in flutter/devtools) into .agents/skills/preparing-pr in your project. Codex loads it when a task matches its description.
Can I use Preparing PR 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 flutter/devtools --skill preparing-pr -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/preparing-pr, .gemini/skills/preparing-pr, .github/skills/preparing-pr and .opencode/skills/preparing-pr in your project.
What does Preparing PR need to run?
Going by SKILL.md and its folder, Preparing PR needs the command-line tools its instructions call (git).
Does Preparing PR access the network?
SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Preparing PR 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 Preparing PR use?
Preparing PR is published under the BSD-3-Clause licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Preparing PR use?
About 351 tokens (SKILL.md is roughly 1.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Preparing PR?
Skills that share tags, products or a category with Preparing PR: Code Review (flutter/flutter, 179k stars), Code Review Skill (awesome-skills/code-review-skill, 2.1k stars), Review PR (hyochan/flutter_calendar_carousel, 860 stars) and Grix Code Review (askie/grix, 153 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Preparing PR?
flutter (a GitHub organization) maintains it in flutter/devtools, which has 1,732 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on October 7, 2026.
Source: flutter/devtools on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.