Sub Agent
Sub Agent is an agent skill (a SKILL.md file) from TokenRhythm/opensquilla. Delegate a self-contained task to a coding assistant through a non-interactive background process. It works with Claude Code and has 7,087 GitHub stars across a repository of 4 listed skills.
github.com/TokenRhythm/opensquilla/src/opensquilla/skills/bundled/sub-agent (opens in a new tab)
- Multi-skill repo
- Coding
- Actively maintained
Add this skill
Claude
Claude Code loads skills from ~/.claude/skills/ (all projects) or .claude/skills/ (one project):
git clone --depth 1 https://github.com/TokenRhythm/opensquilla.git
cp -r opensquilla/src/opensquilla/skills/bundled/sub-agent ~/.claude/skills/sub-agent # personal, or .claude/skills in a projectIn the Claude apps, zip the sub-agent folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).
ChatGPT / Codex
Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:
git clone --depth 1 https://github.com/TokenRhythm/opensquilla.git
cp -r opensquilla/src/opensquilla/skills/bundled/sub-agent .agents/skills/sub-agent # repo; ~/.agents/skills for all projectsStandalone skills also load in the ChatGPT desktop app.
Cursor
Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:
git clone --depth 1 https://github.com/TokenRhythm/opensquilla.git
cp -r opensquilla/src/opensquilla/skills/bundled/sub-agent .cursor/skills/sub-agent # project; ~/.cursor/skills for all projectsSource (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)
What this skill does
Delegate a self-contained task to a coding assistant through a non-interactive background process. Use for feature development, code review, refactoring, and tasks requiring substantial file exploration. Generic "spawn a sub-Agent" entry point for delegating self-contained tasks to Codex / Claude Code / OpenCode / Pi via background process. Use this playbook for self-contained coding and file-editing tasks.
When it triggers
- Use for feature development, code review, refactoring, and tasks requiring substantial file exploration.
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4 skills are listed from this repository.
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What is the Sub Agent skill?
Sub Agent is an agent skill (a SKILL.md file) from TokenRhythm/opensquilla. Delegate a self-contained task to a coding assistant through a non-interactive background process. It works with Claude Code and has 7,087 GitHub stars across a repository of 4 listed skills. Its SKILL.md lives at github.com/TokenRhythm/opensquilla/src/opensquilla/skills/bundled/sub-agent.
How do I install the Sub Agent skill?
Copy the sub-agent folder (the one containing SKILL.md) into ~/.claude/skills/ for Claude Code, .agents/skills/ for Codex or .cursor/skills/ for Cursor. The agent picks it up automatically when a task matches its description.
Is the Sub Agent skill free?
Yes. The repository is open source under the Apache-2.0 license.
Is Sub Agent maintained?
The repository's most recent commit was on Sep 30, 2026. Its latest release is v0.5.6. appsgit only lists skills from repositories with a commit in the last six months.