Agent Skill Builder

Builds, reviews, or migrates agent skills. Use when creating a SKILL.md, auditing an existing skill, or converting a legacy Claude Code command.

7 starsAI, LLMs & Agents

Install

skills CLI (Claude Code, Cursor, Codex and more)

npx skills add conorbronsdon/agent-skill-builder --skill agent-skill-builder

Manual install

git clone --depth 1 https://github.com/conorbronsdon/agent-skill-builder.git /tmp/agent-skill-builder
mkdir -p ~/.claude/skills
cp -r /tmp/agent-skill-builder/. ~/.claude/skills/agent-skill-builder

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# Agent Skill Builder

Produce a ready-to-use skill from a plain-language request. Preserve the user's runtime, scope, and requested level of implementation.

## Select the mode

Parse `$ARGUMENTS`; default to `new` when it contains a description.

- `new <description>`: create or draft a skill.
- `review <path>`: report actionable findings and run validation. Do not rewrite unless asked.
- `migrate <path>`: convert a legacy `.claude/commands/*.md` file into a skill directory while preserving behavior.

## Establish the contract

Infer what is already clear. Ask only when a missing choice would materially change the result.

1. Choose the runtime:
   - Claude Code (default): read [the Claude Code reference](references/claude-code-frontmatter.md).
   - Portable Agent Skills: read [the portable reference](references/portable-agent-skills.md) and omit Claude-only fields.
2. Read the host repository's applicable instruction files (`AGENTS.md`, `CLAUDE.md`, or equivalents) and inspect existing skills. Match local conventions and avoid duplicate capabilities.
3. Identify inputs, outputs, required resources, and the destination directory.
4. Classify the skill:
   - Reference: standing domain rules or conventions.
   - Task: a bounded workflow with a defined result and stopping condition.
   - Tool-backed: a task that benefits from repeatable scripts or narrowly scoped tool grants.

## Design decisions

Include only fields and instructions that change behavior.

Read the full skill on GitHub

Details

Skill name: agent-skill-builder
Repository: conorbronsdon/agent-skill-builder
License: MIT
Repo updated: 24 September 2026

FAQ

What does the Agent Skill Builder skill do?

Builds, reviews, or migrates agent skills. Use when creating a SKILL.md, auditing an existing skill, or converting a legacy Claude Code command.

How do I install the Agent Skill Builder skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add conorbronsdon/agent-skill-builder --skill agent-skill-builder. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Agent Skill Builder popular?

It lives in conorbronsdon/agent-skill-builder, which has 7 GitHub stars and 0 forks.

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