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Agent Development (Claude Code Subagents)

A reference skill for authoring Claude Code subagents: frontmatter rules, triggering examples, and system-prompt structure.

Dev & CodingIntermediate★ 405⑂ 55AI score 8/10Last updated: Sep 6, 2026

What it does

  • Documents the standard subagent file format (agents/agent-name.md), including rules and limits for name, description, model, color, and tools.
  • Teaches how to write the <example> / <commentary> blocks inside description — the field that determines whether the agent actually triggers.
  • Provides a system-prompt template (core responsibilities → analysis process → quality standards → output format → edge cases) plus DO/DON'T checklists.
  • Includes an AI-assisted generation prompt, validation scripts, and a testing workflow before shipping the plugin.

Who it's for

  • Developers building Claude Code plugins or autonomous subagents
  • Anyone whose existing agent never fires and needs better triggering conditions
  • Team leads standardizing agent authoring conventions across a repo

Examples

  1. Ask "create a code review agent" → get a draft with identifier code-reviewer, tools: ["Read","Grep","Glob"], a review process, and an output format.
  2. Agent not triggering → add 2–4 <example> blocks covering different phrasings of the same intent.
  3. Before release → run scripts/validate-agent.sh for structure checks, then test triggering with realistic prompts.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/Microck/ordinary-claude-skills/HEAD/skills_all/agent-identifier/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills_all/agent-identifier folder from the GitHub repo Microck/ordinary-claude-skills into my ~/.claude/skills/agent-development/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/Microck/ordinary-claude-skills.git /tmp/ordinary-claude-skills && mkdir -p ~/.claude/skills && cp -r /tmp/ordinary-claude-skills/skills_all/agent-identifier ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repo: git clone https://github.com/Microck/ordinary-claude-skills.git
  3. Create the skills directory: mkdir -p ~/.claude/skills
  4. Copy the entire skill folder so bundled references come along: cp -r ordinary-claude-skills/skills_all/agent-identifier ~/.claude/skills/
  5. Restart Claude Code and test with a prompt like "create an agent" or "agent frontmatter".
  6. Verify the extras exist: ls ~/.claude/skills/agent-identifier should show references/ and scripts/.
View source on GitHub ↗License: NOASSERTION