Agent skill

Review Skill

by skilld-dev in skilld-dev/skilld

Review an Agent Skill for valid structure, clear triggers, usable instructions, current evidence, and risky or unclear actions.

MITAuto-check passedDevelopment

Install Review Skill

skills CLI
$ npx skills add skilld-dev/skilld --skill review-skill -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install skilld-dev/skilld review-skill --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/skilld-dev/skilld.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/review-skill .claude/skills/review-skill && rm -rf skills-src

Use ~/.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/

Facts

Skill name
review-skill
GitHub stars
315
Token cost
~648 tokens
SKILL.md length
397 words
Files
2 (incl. assets)
Skills in repo
5
Repo updated
First seen
Licence
MIT

At a glance

Review an Agent Skill for valid structure, clear triggers, usable instructions, current evidence, and risky or unclear actions.

  • Works in 12 steps: Confirm SKILL.md exists and its parent… → Confirm frontmatter uses supported… → Confirm the description says what the… → …
  • Development work in your project
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Review Skill is an agent skill from skilld-dev/skilld. Review an Agent Skill for valid structure, clear triggers, usable instructions, current evidence, and risky or unclear actions.

Its SKILL.md is about 650 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including assets (for example `assets/harness-request.md`).

It sits in Development. The repository describes itself as: Open-source, privacy friendly skills.sh alternative for humans and agents. The licence is MIT.

When your agent uses it

  • Development work in your project

Example prompts

  • “/review-skill”

Workflow steps

12 steps, taken from the first numbered list in SKILL.md.

  1. Confirm SKILL.md exists and its parent directory matches its name.
  2. Confirm frontmatter uses supported fields and valid values.
  3. Confirm the description says what the Skill does and when to use it, in the third person, with the terms a user types.
  4. Follow every linked reference and script.
  5. Report missing or broken links.
  6. Reject symbolic links, special files, and paths that leave the Skill directory.
  7. Check instructions for missing inputs, unclear outcomes, and silent failure paths.
  8. Check commands for destructive scope, credential exposure, and unverified downloads.
  9. Check examples against the cited API or project source. If a runtime is available, run them and report each result that differs from the…
  10. Find repeated prose and material that belongs in a reference.
  11. Find text the reader already knows: domain or framework explanations, generic debug advice, changelog paraphrase, and internals the reader…
  12. For a package Skill, confirm the body names the package version it was tested against, once, in the first paragraph. Flag other version…

What it can do on your machine

Read from SKILL.md and the folder at commit 5797f37. 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

    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

Review Skill loads about 648 tokens when it runs. Until then it costs about 35 tokens; SKILL.md has 397 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~35
When it runs · the whole SKILL.md, loaded when a task matches
~648

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 skilld-dev/skilld at commit 5797f37, republished under its MIT licence (© skilld-dev). 397 words, ~648 tokens.

Download SKILL.mdSave it as .claude/skills/review-skill/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
review-skill
description
Review an Agent Skill for valid structure, clear triggers, usable instructions, current evidence, and risky or unclear actions.

Review a Skill

Review the supplied Skill as an Agent would use it.

Checks

  1. Confirm SKILL.md exists and its parent directory matches its name.
  2. Confirm frontmatter uses supported fields and valid values.
  3. Confirm the description says what the Skill does and when to use it, in the third person, with the terms a user types.
  4. Follow every linked reference and script.
  5. Report missing or broken links.
  6. Reject symbolic links, special files, and paths that leave the Skill directory.
  7. Check instructions for missing inputs, unclear outcomes, and silent failure paths.
  8. Check commands for destructive scope, credential exposure, and unverified downloads.
  9. Check examples against the cited API or project source. If a runtime is available, run them and report each result that differs from the claim. An example is each code block and each checkable prose claim: a default, a list, a count, error text, an exit code, or "X happens when Y". Test the exact version the Skill names, never the repository head. Use the toolchain its users run, in each mode the claim covers, such as SSR, dev, and build. Install it in an empty scratch directory with its own pnpm-workspace.yaml. Prefer a local fixture to a live site. Never use personal credentials. For cloud-bound code, typecheck it and run it against in-memory stand-ins. Confirm a failing claim with a second probe before you report it. Mark each example executed, read from source, or unverified.
  10. Find repeated prose and material that belongs in a reference.
  11. Find text the reader already knows: domain or framework explanations, generic debug advice, changelog paraphrase, and internals the reader cannot act on.
  12. For a package Skill, confirm the body names the package version it was tested against, once, in the first paragraph. Flag other version literals.
  13. Confirm the body covers each export, option, or symptom the description promises.
Show full SKILL.md (81 more words)Show less

Rank each finding:

  • error: following the Skill gives a wrong result, a failure, or a security gap.
  • warning: an Agent would act wrongly on the claim, a failure stays silent, or a needed input is missing.
  • note: precision, repetition, structure, or token cost.

Give the exact path, the line, and a direct fix. Do not rewrite the Skill unless the request asks for changes.

For a direct run, present the findings to the user. The user decides whether to apply them.

© skilld-dev, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (assets) in skills/review-skill of skilld-dev/skilld.

  • SKILL.md
  • assets/harness-request.md

Open the folder on GitHubat commit 5797f37

Compare with similar skills

Review Skill 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.

Review Skill compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Review Skill this skillskilld-dev/skilld315—~648Automated safety check: PassMIT
Finishing a Development Branchobra/superpowers296k5 repos~1.9kAutomated safety check: PassMIT
Typescript Advanced Typesrolling-scopes/rsschool-app10k24 repos~4.2kAutomated safety check: PassMPL-2.0
PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Code Review ChecklistshareAI-lab/learn-claude-code78k5 repos~1.1kAutomated safety check: PassMIT
Greplooponyx-dot-app/onyx32k4 repos~3.3kAutomated safety check: PassMIT

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Categories

Questions about Review Skill

What does Review Skill do?

Review an Agent Skill for valid structure, clear triggers, usable instructions, current evidence, and risky or unclear actions. Review Skill is an agent skill from skilld-dev/skilld. Review an Agent Skill for valid structure, clear triggers, usable instructions, current evidence, and risky or unclear actions.

When should I use Review Skill?

Review Skill fits situations like: development work in your project.

How do I install Review Skill in Claude Code?

Run `npx skills add skilld-dev/skilld --skill review-skill -a claude-code`. Or copy the skill folder (skills/review-skill in skilld-dev/skilld) into .claude/skills/review-skill in your project. Claude Code loads it when a task matches its description.

How do I install Review Skill in Codex?

Run `npx skills add skilld-dev/skilld --skill review-skill -a codex`. Or copy the skill folder (skills/review-skill in skilld-dev/skilld) into .agents/skills/review-skill in your project. Codex loads it when a task matches its description.

Can I use Review Skill 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 skilld-dev/skilld --skill review-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/review-skill, .gemini/skills/review-skill, .github/skills/review-skill and .opencode/skills/review-skill in your project.

What does Review Skill need to run?

SKILL.md names no scripts, command-line tools or credentials: Review Skill is instructions for the agent only.

Does Review Skill 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 Review Skill 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 Review Skill use?

Review Skill is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Review Skill use?

About 648 tokens (SKILL.md is roughly 2.6k 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 Review Skill?

Skills that share tags, products or a category with Review Skill: Finishing a Development Branch (obra/superpowers, 296k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars), PR Babysitter (openinterpreter/openinterpreter, 69k stars) and Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Review Skill?

skilld-dev (a GitHub organization) maintains it in skilld-dev/skilld, which has 315 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on October 7, 2026.

Source: skilld-dev/skilld on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.