MCP Server Builder
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
Audit and validate existing Claude Code skills for quality, triggering accuracy, structure compliance, and best practices.
Install Skill Forge Review
$ npx skills add AgriciDaniel/skill-forge --skill skill-forge-review -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install AgriciDaniel/skill-forge skill-forge-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/AgriciDaniel/skill-forge.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/skill-forge-review .claude/skills/skill-forge-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 "skill-forge-review" agent skill from https://github.com/AgriciDaniel/skill-forge/tree/main/skills/skill-forge-review into .claude/skills/skill-forge-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-forge-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/AgriciDaniel/skill-forge/tree/main/skills/skill-forge-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 AgriciDaniel/skill-forge --skill skill-forge-review -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install AgriciDaniel/skill-forge skill-forge-review --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AgriciDaniel/skill-forge.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/skill-forge-review .agents/skills/skill-forge-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 "skill-forge-review" agent skill from https://github.com/AgriciDaniel/skill-forge/tree/main/skills/skill-forge-review into .agents/skills/skill-forge-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-forge-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 AgriciDaniel/skill-forge --skill skill-forge-review -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install AgriciDaniel/skill-forge skill-forge-review --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AgriciDaniel/skill-forge.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/skill-forge-review .cursor/skills/skill-forge-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 "skill-forge-review" agent skill from https://github.com/AgriciDaniel/skill-forge/tree/main/skills/skill-forge-review into .cursor/skills/skill-forge-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-forge-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/AgriciDaniel/skill-forge.git --path skills/skill-forge-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 AgriciDaniel/skill-forge --skill skill-forge-review -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install AgriciDaniel/skill-forge skill-forge-review --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AgriciDaniel/skill-forge.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/skill-forge-review .gemini/skills/skill-forge-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 "skill-forge-review" agent skill from https://github.com/AgriciDaniel/skill-forge/tree/main/skills/skill-forge-review into .gemini/skills/skill-forge-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-forge-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 AgriciDaniel/skill-forge skill-forge-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 AgriciDaniel/skill-forge --skill skill-forge-review -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/AgriciDaniel/skill-forge.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/skill-forge-review .github/skills/skill-forge-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 "skill-forge-review" agent skill from https://github.com/AgriciDaniel/skill-forge/tree/main/skills/skill-forge-review into .github/skills/skill-forge-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-forge-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 AgriciDaniel/skill-forge --skill skill-forge-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 AgriciDaniel/skill-forge skill-forge-review --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AgriciDaniel/skill-forge.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/skill-forge-review .opencode/skills/skill-forge-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 "skill-forge-review" agent skill from https://github.com/AgriciDaniel/skill-forge/tree/main/skills/skill-forge-review into .opencode/skills/skill-forge-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "skill-forge-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
skill-forge-review- GitHub stars
- 179
- Token cost
- ~1.3k tokens
- SKILL.md length
- 493 words
- Files
- 1
- Skills in repo
- 9
- Repo updated
- First seen
- Licence
- MIT
At a glance
Audit and validate existing Claude Code skills for quality, triggering accuracy, structure compliance, and best practices.
- Works in 10 steps: Locate Skill Files → Structure Validation → Frontmatter Audit → …
- User says review skill
- Calls python
What it does
Skill Forge Review is an agent skill from AgriciDaniel/skill-forge. Audit and validate existing Claude Code skills for quality, triggering accuracy, structure compliance, and best practices. Scores skills on a 0-100 scale and provides prioritized improvement recommendations. Use when user says "review skill", "audit skill", "check skill", "validate skill", or "skill quality".
Its SKILL.md is about 1.3k 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 Agent Workflows. The repository describes itself as: Ultimate Claude Code skill creator — design, scaffold, build, review, evolve, and publish production-grade AI agent skills. The licence is MIT.
When your agent uses it
- User says review skill
Example prompts
- “review skill”
- “audit skill”
- “check skill”
- “/skill-forge-review”
Requirements
- Python 3
Workflow steps
10 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 2872ee9. 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:
python
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
Skill Forge Review loads about 1.3k tokens when it runs. Until then it costs about 82 tokens; SKILL.md has 493 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 AgriciDaniel/skill-forge at commit 2872ee9, republished under its MIT licence (© AgriciDaniel). 493 words, ~1,315 tokens.
Download SKILL.mdSave it as
.claude/skills/skill-forge-review/SKILL.md (or your agent's skills folder).- name
- skill-forge-review
- description
- Audit and validate existing Claude Code skills for quality, triggering accuracy, structure compliance, and best practices. Scores skills on a 0-100 scale and provides prioritized improvement recommendations. Use when user says "review skill", "audit skill", "check skill", "validate skill", or "skill quality".
Skill Review & Validation
Process
Step 1: Locate Skill Files
Accept input as:
- Path to a skill directory
- Skill name (search in
~/.claude/skills/) - URL to a GitHub repository
Read all .md files, scripts, and asset files.
Step 2: Structure Validation
Run python scripts/validate_skill.py <path> for programmatic checks.
Manual verification:
- SKILL.md exists (exact case)
- No README.md inside skill folder
- Folder name matches
namefield - Valid kebab-case naming (1-64 chars)
- No "claude" or "anthropic" in name
Step 3: Frontmatter Audit
| Check | Pass Criteria |
|---|---|
| Name format | kebab-case, 1-64 chars, no leading/trailing hyphens |
| Description present | Non-empty, 1-1024 characters |
| Description has WHAT | Explains capabilities |
| Description has WHEN | Includes trigger phrases |
| Description has keywords | Domain-specific terms included |
| No XML tags | No < or > characters |
| Optional fields valid | license, compatibility (<500 chars), metadata |
Step 4: Triggering Analysis
Assess the description for activation quality:
Under-triggering risks:
- Too generic ("Helps with projects")
- Missing common paraphrases
- No domain keywords
- Missing file type mentions (if relevant)
Over-triggering risks:
- Too broad ("Processes documents")
- Overlaps with built-in Claude capabilities
- Missing negative triggers for disambiguation
Generate test queries:
- 5 queries that SHOULD trigger the skill
- 5 queries that SHOULD NOT trigger
- 3 edge cases (ambiguous queries)
Step 5: Instruction Quality
| Criterion | Score (0-10) |
|---|---|
| Specificity | Are instructions actionable? (not "validate properly") |
| Completeness | All workflows covered? |
| Error handling | Common failures addressed? |
| Examples | Concrete examples provided? |
| Progressive disclosure | Detailed docs in references/ not SKILL.md? |
| Length | Under 500 lines / 5000 tokens? |
| Cross-references | Clear links to references/scripts? |
Step 6: Architecture Review (Multi-skill)
For skills with sub-skills:
- Main skill has clear routing table
- Sub-skills have focused responsibilities
- Cross-references are valid (files exist)
- Naming follows
parent-childconvention - Shared references in parent, not duplicated
- Agents have clear roles (if Tier 4)
Step 7: Script Quality (if present)
- Docstrings with purpose, input, output
- CLI interface (argparse or similar)
- Structured output (JSON)
- Error handling (try/except with clear messages)
- No hardcoded paths or secrets
- Minimal dependencies
Show full SKILL.md (184 more words)Show less
Step 8: Generate Skill Health Score
Scoring methodology (0-100):
| Category | Weight | Checks |
|---|---|---|
| Frontmatter Quality | 25% | Name, description, format |
| Trigger Accuracy | 20% | WHAT + WHEN + keywords |
| Instruction Quality | 25% | Specificity, completeness, examples |
| Structure Compliance | 15% | File naming, organization, references |
| Script Quality | 10% | If applicable (full marks if no scripts needed) |
| Progressive Disclosure | 5% | Proper use of 3-level system |
Step 9: Generate Trigger Eval Set
After reviewing, generate a structured trigger eval set for ongoing testing:
- Run
python scripts/generate_eval_set.py <path>to auto-generate a starter set - Review and refine the generated queries:
- Ensure 8-10 should-trigger queries cover different phrasings and edge cases
- Ensure 8-10 should-not-trigger queries are near-misses (not obviously irrelevant)
- Include casual speech, typos, and uncommon domain uses in should-trigger set
- Save the eval set to
evals/evals.jsonin the skill directory
Good queries are realistic and specific (include file paths, context, domain details). Bad queries are overly generic ("format this data") or obviously irrelevant.
- Run
python scripts/optimize_description.py <path> --eval-set evals/evals.jsonto score the current description and get improvement suggestions - Recommend running
/skill-forge eval <path>for full functional evaluation
Step 10: Generate Report
# Skill Review: [name]
## Health Score: [X]/100
## Summary
[2-3 sentence assessment]
## Scores by Category
| Category | Score | Notes |
|----------|-------|-------|
| Frontmatter | X/25 | [issues] |
| Triggering | X/20 | [issues] |
| Instructions | X/25 | [issues] |
| Structure | X/15 | [issues] |
| Scripts | X/10 | [issues] |
| Disclosure | X/5 | [issues] |
## Critical Issues (fix immediately)
- [issue 1]
- [issue 2]
## High Priority (fix within 1 week)
- [issue 1]
## Recommendations
- [suggestion 1]
- [suggestion 2]
## Suggested Test Queries
### Should Trigger
1. [query]
2. [query]
3. [query]
### Should NOT Trigger
1. [query]
2. [query]
3. [query]© AgriciDaniel, MIT. 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 skills/skill-forge-review of AgriciDaniel/skill-forge.
Open the folder on GitHubat commit 2872ee9
Compare with similar skills
Skill Forge 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 |
|---|---|---|---|---|---|---|
| Skill Forge Review this skillAgriciDaniel/skill-forge | 179 | — | ~1.3k | Automated safety check: Pass | MIT | |
| MCP Server Builderanthropics/skills | 180k | 63 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| Hook Development for Claude Code Pluginsanthropics/claude-plugins-official | 38k | 10 repos | ~4.1k | Automated safety check: Notes | Apache-2.0 | |
| Using Superpowersfarm-fe/farm | 5.6k | 35 repos | ~1.4k | Automated safety check: Pass | MIT | |
| Executing Plans Inlineobra/superpowers | 297k | 2 repos | ~5.1k | Automated safety check: Pass | MIT | |
| Skill CreatorAzure/azqr | 796 | 89 repos | ~8.2k | Automated safety check: Pass | Apache-2.0 |
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Using Superpowers
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Executing Plans Inline
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Related
Categories
Questions about Skill Forge Review
What does Skill Forge Review do?
Audit and validate existing Claude Code skills for quality, triggering accuracy, structure compliance, and best practices. Skill Forge Review is an agent skill from AgriciDaniel/skill-forge. Audit and validate existing Claude Code skills for quality, triggering accuracy, structure compliance, and best practices.
When should I use Skill Forge Review?
Skill Forge Review fits situations like: user says review skill.
How do I install Skill Forge Review in Claude Code?
Run `npx skills add AgriciDaniel/skill-forge --skill skill-forge-review -a claude-code`. Or copy the skill folder (skills/skill-forge-review in AgriciDaniel/skill-forge) into .claude/skills/skill-forge-review in your project. Claude Code loads it when a task matches its description.
How do I install Skill Forge Review in Codex?
Run `npx skills add AgriciDaniel/skill-forge --skill skill-forge-review -a codex`. Or copy the skill folder (skills/skill-forge-review in AgriciDaniel/skill-forge) into .agents/skills/skill-forge-review in your project. Codex loads it when a task matches its description.
Can I use Skill Forge 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 AgriciDaniel/skill-forge --skill skill-forge-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/skill-forge-review, .gemini/skills/skill-forge-review, .github/skills/skill-forge-review and .opencode/skills/skill-forge-review in your project.
What does Skill Forge Review need to run?
Going by SKILL.md and its folder, Skill Forge Review needs the command-line tools its instructions call (python). Our summary lists: Python 3.
Does Skill Forge 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 Skill Forge 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 Skill Forge Review use?
Skill Forge Review 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 Skill Forge Review use?
About 1.3k tokens (SKILL.md is roughly 5.3k 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 Skill Forge Review?
Skills that share tags, products or a category with Skill Forge Review: MCP Server Builder (anthropics/skills, 180k stars), Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 38k stars), Using Superpowers (farm-fe/farm, 5.6k stars) and Executing Plans Inline (obra/superpowers, 297k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Skill Forge Review?
AgriciDaniel (a GitHub user) maintains it in AgriciDaniel/skill-forge, which has 179 GitHub stars. The repository holds 9 skills in this directory. The repository was last updated on April 10, 2026.
Source: AgriciDaniel/skill-forge on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.