Agent Spec
Agent Spec is an agent skill (a SKILL.md file) from mohitagw15856/pm-claude-skills. Specify an autonomous or tool-using AI agent before building it. It works with Claude Code, Codex and Cursor and has 1,430 GitHub stars across a repository of 2 listed skills.
github.com/mohitagw15856/pm-claude-skills/skills/agent-spec (opens in a new tab)
- Multi-skill repo
- Plugin marketplace
- Docs & writing
- Actively maintained
Add this skill
Claude
This repository is a Claude Code plugin marketplace. In Claude Code:
/plugin marketplace add mohitagw15856/pm-claude-skills
/plugin # browse pm-claude-skills and install the plugin that contains agent-specIn the Claude apps, zip the agent-spec 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/mohitagw15856/pm-claude-skills.git
cp -r pm-claude-skills/skills/agent-spec .agents/skills/agent-spec # 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/mohitagw15856/pm-claude-skills.git
cp -r pm-claude-skills/skills/agent-spec .cursor/skills/agent-spec # project; ~/.cursor/skills for all projectsSource (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (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
Specify an autonomous or tool-using AI agent before building it. Use when asked to design an AI agent, define an agent's tools and guardrails, scope what an agent is allowed to do, or write an agent spec/PRD. Produces an agent spec — goal & scope, tools with permissions, the control loop, guardrails & approval gates, memory, escalation/handoff, evaluation, and failure handling. An agent is a model plus tools plus a loop — and the danger lives in the tools and the loop, not the model.
When it triggers
- Use when asked to design an AI agent, define an agent's tools and guardrails, scope what an agent is allowed to do, or write an agent spec/PRD.
More skills in mohitagw15856/pm-claude-skills
2 skills are listed from this repository.
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What is the Agent Spec skill?
Agent Spec is an agent skill (a SKILL.md file) from mohitagw15856/pm-claude-skills. Specify an autonomous or tool-using AI agent before building it. It works with Claude Code, Codex and Cursor and has 1,430 GitHub stars across a repository of 2 listed skills. Its SKILL.md lives at github.com/mohitagw15856/pm-claude-skills/skills/agent-spec.
How do I install the Agent Spec skill?
In Claude Code, run /plugin marketplace add mohitagw15856/pm-claude-skills, then install its plugin from /plugin. For Codex or Cursor, copy the agent-spec folder into .agents/skills/ or .cursor/skills/.
Is the Agent Spec skill free?
Yes. The repository is open source under the MIT license.
Is Agent Spec maintained?
The repository's most recent commit was on Oct 6, 2026. Its latest release is v82.0.0. appsgit only lists skills from repositories with a commit in the last six months.