implement-sub-agents
Create and validate Claude sub-agent definitions with correct frontmatter, tool permissions, and delegation boundaries.
Skill by yu-iskw
Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/yu-iskw-implement-sub-agents-7c7b18
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Use cases: agent-building
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
- Runs as
- Shell scripts
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/implement-sub-agents
What's inside
- Skill name
implement-sub-agents- Description
- Create and validate Claude sub-agent definitions with correct frontmatter, tool permissions, and delegation boundaries.
- License
- Apache-2.0
- Instructions
- 39 lines in SKILL.md · view on GitHub
Before installing
- Ships executable scripts
Files (12)
- SKILL.md
- subagent-readonly.md · assets/templates/
- subagent-template.md · assets/templates/
- subagent-with-hooks.md · assets/templates/
- subagent-with-skills.md · assets/templates/
- subagent-delegation.md · references/
- subagent-frontmatter.md · references/
- subagent-models.md · references/
- subagent-permissions.md · references/
- subagent-tools.md · references/
- check-subagent-frontmatter.sh · scripts/
- validate-subagent.sh · scripts/
SKILL.md (first lines)
# Implement Sub-Agents Create or update agent files under `agents/` with explicit role boundaries, model/tool settings, and delegation patterns. ## Workflow 1. Define the sub-agent role and scope boundaries. 2. Author/update agent markdown with valid frontmatter. 3. Set tool/model/permission configuration based on least privilege. 4. Validate frontmatter and basic agent file shape. 5. Connect with related skills/hooks only when required. ## Progressive Disclosure - Agent frontmatter rules: `references/subagent-frontmatter.md` - Tool access strategy: `references/subagent-tools.md` - Model selection guidance: `references/subagent-models.md` - Permission boundaries: `references/subagent-permissions.md` - Delegation patterns: `references/subagent-delegation.md` - Agent file validator: `scripts/validate-subagent.sh` - Frontmatter checker: `scripts/check-subagent-frontmatter.sh` - Base sub-agent template: `assets/templates/subagent-template.md` - Read-only sub-agent example: `assets/templates/subagent-readonly.md` - Sub-agent with skills example: `assets/templates/subagent-with-skills.md` - Sub-agent with hooks example: `assets/templates/subagent-with-hooks.md` ## Related Skills - Umbrella routing and architecture: `../implement-claude-extensions/SKILL.md` - Agent team coordination: `../implement-agent-teams/SKILL.md` ## Sources - https://code.claude.com/docs/en/sub-agents - https://code.claude.com/docs/en/plugins
From yu-iskw/software-development-team-plugin, Apache-2.0.
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Signals
- Stars
- 3
- Forks
- 1
- Open issues
- 2
- Last commit (this folder)
- Feb 7, 2026 (8 months ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- Apache-2.0
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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Cite this page
implement-sub-agents skill. Agent Mart. https://agentmart.dev/skills/yu-iskw-implement-sub-agents-7c7b18 (last updated 2026-10-24)