Individual skill

agent-spec

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.

skills/agent-spec/SKILL.md

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Last checked: Nov 9, 2026

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Repository stars (not skill ratings): 1,539
Repository last updated: Nov 9, 2026
License: MIT

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SKILL.mdcore · 4,380 bytes

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# Agent Spec Skill

An agent is a model plus tools plus a loop — and the danger lives in the tools and the loop, not the
model. This skill specifies an agent so its *authority is explicit*: what it can do, what needs a human
yes, and what happens when it's wrong. Scope and guardrails first; cleverness second.

> **Not quite this?** Use `agent-observability-spec` when the agent is in production and needs tracing and alerting.

## Required Inputs

Ask for these only if they aren't already provided:

- **Job to be done** — the outcome the agent owns, and the boundary of its authority.
- **Tools/actions** — what it can call (read APIs, write actions, code execution), and which are irreversible.