Minimizing Ty Ecosystem Changes
astral-sh/ruff
A skill your agent uses when a user says "minimize this ty ecosystem change", "reproduce this ecosystem result", "investigate a primer difference", "investigate a mypyprimer difference"…
Operate ast-grep as a project lint tool. An agent skill from mizchi/skills.
Install Ast Grep Practice
$ npx skills add mizchi/skills --skill ast-grep-practice -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mizchi/skills ast-grep-practice --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/mizchi/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/ast-grep-practice .claude/skills/ast-grep-practice && 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 "ast-grep-practice" agent skill from https://github.com/mizchi/skills/tree/main/ast-grep-practice into .claude/skills/ast-grep-practice/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ast-grep-practice", 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/mizchi/skills/tree/main/ast-grep-practiceType 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 mizchi/skills --skill ast-grep-practice -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mizchi/skills ast-grep-practice --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mizchi/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/ast-grep-practice .agents/skills/ast-grep-practice && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "ast-grep-practice" agent skill from https://github.com/mizchi/skills/tree/main/ast-grep-practice into .agents/skills/ast-grep-practice/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ast-grep-practice", 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 mizchi/skills --skill ast-grep-practice -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mizchi/skills ast-grep-practice --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mizchi/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/ast-grep-practice .cursor/skills/ast-grep-practice && 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 "ast-grep-practice" agent skill from https://github.com/mizchi/skills/tree/main/ast-grep-practice into .cursor/skills/ast-grep-practice/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ast-grep-practice", 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/mizchi/skills.git --path ast-grep-practice--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 mizchi/skills --skill ast-grep-practice -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mizchi/skills ast-grep-practice --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mizchi/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/ast-grep-practice .gemini/skills/ast-grep-practice && 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 "ast-grep-practice" agent skill from https://github.com/mizchi/skills/tree/main/ast-grep-practice into .gemini/skills/ast-grep-practice/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ast-grep-practice", 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 mizchi/skills ast-grep-practiceInstalls 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 mizchi/skills --skill ast-grep-practice -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mizchi/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/ast-grep-practice .github/skills/ast-grep-practice && 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 "ast-grep-practice" agent skill from https://github.com/mizchi/skills/tree/main/ast-grep-practice into .github/skills/ast-grep-practice/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ast-grep-practice", 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 mizchi/skills --skill ast-grep-practice -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mizchi/skills ast-grep-practice --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mizchi/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/ast-grep-practice .opencode/skills/ast-grep-practice && 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 "ast-grep-practice" agent skill from https://github.com/mizchi/skills/tree/main/ast-grep-practice into .opencode/skills/ast-grep-practice/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ast-grep-practice", 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
ast-grep-practice- GitHub stars
- 359
- Token cost
- ~4.6k tokens
- SKILL.md length
- 1,255 words
- Files
- 7 (incl. references)
- Skills in repo
- 69
- Repo updated
- First seen
- Licence
- None found
At a glance
Operate ast-grep as a project lint tool. An agent skill from mizchi/skills.
- Works in 5 steps: Write the test file under rule-tests/… → Write the rule under rules/ (Green) → Verify with ast-grep test… → …
- Writing rules ast-grep can express but general-purpose linters cannot
- SKILL.md covers Installation, Quick Start, Principles and Choosing between ast-grep and…, plus 8 more sections
- Calls npm, npx and cargo
What it does
Ast Grep Practice is an agent skill from mizchi/skills. Operate ast-grep as a project lint tool. Covers sgconfig.yml, fix/rewrite rules, constraints, transform, testing, and CI. Use when writing rules ast-grep can express but general-purpose linters cannot.
Its SKILL.md is about 4.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including reference files (for example `README.md`, `SKILL-ja.md` and `references/cli.md`).
It sits in Development, covering Linting and formatting and Brand voice and tone. The repository describes itself as: Agent skills by mizchi, distributed via APM.
When your agent uses it
- Writing rules ast-grep can express but general-purpose linters cannot
- Tasks that involve Linting and formatting
- Tasks that involve Brand voice and tone
Example prompts
- “/ast-grep-practice”
Requirements
- Python 3
- Node.js
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Write the test file under rule-tests/ (Red)
- Write the rule under rules/ (Green)
- Verify with ast-grep test --skip-snapshot-tests
- Generate snapshots with ast-grep test -U
- Review the snapshots and commit
What it can do on your machine
Read from SKILL.md and the folder at commit 62f5808. 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:
npmnpxcargobrew
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
ast-grep.github.io
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
Ast Grep Practice loads about 4.6k tokens when it runs, and up to ~9.6k if it reads all its reference files. Until then it costs about 55 tokens; SKILL.md has 1,255 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 1,255 words (~4,556 tokens).
“Complement general-purpose lint tools (ESLint, oxlint, Biome, clippy, etc.) with ast-grep for patterns they cannot express. Always prefer reproducible static rules over natural-language prompts.”
- name
- ast-grep-practice
Files
SKILL.md and 6 other files (references) in ast-grep-practice of mizchi/skills.
- SKILL.md
- README.md
- SKILL-ja.md
- references/cli.md
- references/kind-catalog.md
- references/rule-yaml.md
- references/testing.md
Open the folder on GitHubat commit 62f5808
Compare with similar skills
Ast Grep Practice 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 |
|---|---|---|---|---|---|---|
| Ast Grep Practice this skillmizchi/skills | 359 | — | ~4.6k | Automated safety check: Pass | None | |
| Minimizing Ty Ecosystem Changesastral-sh/ruff | 50k | — | ~4.6k | Automated safety check: Pass | MIT | |
| Install Anti-Slop Oxlint Rulesdmmulroy/anti-slop | 5.3k | — | ~2.2k | Automated safety check: Pass | MIT | |
| Babysit PR To Pass CIsgl-project/sglang | 37k | 2 repos | ~3k | Automated safety check: Pass | Apache-2.0 | |
| Rust Best Practicesfarm-fe/farm | 5.6k | 3 repos | ~1.1k | Automated safety check: Pass | MIT | |
| Summarise Ecosystem Resultsastral-sh/ruff | 50k | — | ~2.2k | Automated safety check: Pass | MIT |
Similar skills
- Official
Install Anti-Slop Oxlint Rules
dmmulroy/anti-slop
Installs, updates or migrates the vendored anti-slop Oxlint plugin in a repository, keeping local rule changes and the plugin's license and provenance files.
Babysit PR To Pass CI
sgl-project/sglang
Start and persistently pursue a goal to babysit an SGLang pull request until selected GitHub Actions workflows pass on the latest PR head.
Rust Best Practices
farm-fe/farm
Guide for writing idiomatic Rust code based on Apollo GraphQL's best practices handbook.
- Official
Summarise Ecosystem Results
astral-sh/ruff
A skill your agent uses when a user says "summarise ecosystem results", "summarize this ty ecosystem report", "what changed in this ecosystem run?", or asks to summarise or summarize ty ecosystem…
Go Pedantry
chromedp/chromedp
This skill should be used when the user is writing Go code and needs guidance on Go-specific pedantry: error wrapping with fmt.Errorf and %w, interface design (accept interfaces return structs)…
More from mizchi/skills
All 69 skills in this repoPublish Agent Skill
mizchi/skills
Package, publish, verify and update an agent skill through a Claude Code plugin marketplace, APM or the npx skills CLI.
AI Index
mizchi/skills
Method and tooling for measuring how AI-generated a piece of prose reads, in Japanese or English.
Cloudflare Deploy
mizchi/skills
Deploy applications and infrastructure to Cloudflare with the cf CLI and typed cloudflare.config.ts.
Review Image
mizchi/skills
Review screenshots or other images with OpenRouter vision models via bundled Deno scripts.
Sqlc Gen Moonbit Safety
mizchi/skills
Post-generation safety checks for sqlc-gen-moonbit + Cloudflare D1.
Apm Usage
mizchi/skills
Reference for APM (Agent Package Manager) — apm.yml syntax, install / uninstall / update commands, target detection, lockfile workflow.
Related
Categories
Questions about Ast Grep Practice
What does Ast Grep Practice do?
Operate ast-grep as a project lint tool. An agent skill from mizchi/skills. Ast Grep Practice is an agent skill from mizchi/skills. Operate ast-grep as a project lint tool.
When should I use Ast Grep Practice?
Ast Grep Practice fits situations like: writing rules ast-grep can express but general-purpose linters cannot; tasks that involve Linting and formatting; tasks that involve Brand voice and tone.
How do I install Ast Grep Practice in Claude Code?
Run `npx skills add mizchi/skills --skill ast-grep-practice -a claude-code`. Or copy the skill folder (ast-grep-practice in mizchi/skills) into .claude/skills/ast-grep-practice in your project. Claude Code loads it when a task matches its description.
How do I install Ast Grep Practice in Codex?
Run `npx skills add mizchi/skills --skill ast-grep-practice -a codex`. Or copy the skill folder (ast-grep-practice in mizchi/skills) into .agents/skills/ast-grep-practice in your project. Codex loads it when a task matches its description.
Can I use Ast Grep Practice 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 mizchi/skills --skill ast-grep-practice -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ast-grep-practice, .gemini/skills/ast-grep-practice, .github/skills/ast-grep-practice and .opencode/skills/ast-grep-practice in your project.
What does Ast Grep Practice need to run?
Going by SKILL.md and its folder, Ast Grep Practice needs the command-line tools its instructions call (npm, npx, cargo and brew). Our summary lists: Python 3; Node.js.
Does Ast Grep Practice access the network?
SKILL.md names 1 domain. As links in the text: ast-grep.github.io. This is read from the text; nothing was executed.
Is Ast Grep Practice 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 Ast Grep Practice use?
No licence was found for Ast Grep Practice or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Ast Grep Practice use?
About 4.6k tokens (SKILL.md is roughly 18k 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 5.1k tokens, read only when the agent opens those files.
What are the alternatives to Ast Grep Practice?
Skills that share tags, products or a category with Ast Grep Practice: Minimizing Ty Ecosystem Changes (astral-sh/ruff, 50k stars), Install Anti-Slop Oxlint Rules (dmmulroy/anti-slop, 5.3k stars), Babysit PR To Pass CI (sgl-project/sglang, 37k stars) and Rust Best Practices (farm-fe/farm, 5.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Ast Grep Practice?
mizchi (a GitHub user) maintains it in mizchi/skills, which has 359 GitHub stars. The repository holds 69 skills in this directory. The repository was last updated on October 2, 2026.
Source: mizchi/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.