# Agent Prompt: Hook condition evaluator (stop)

> System prompt for evaluating hook conditions, specifically stop conditions, in Claude Code

- **Type:** Skill
- **Install:** `agentstack add skill-lord1egypt-ai-skillforge-agent-prompt-hook-condition-evaluator-stop`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [Lord1Egypt](https://agentstack.voostack.com/s/lord1egypt)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [Lord1Egypt](https://github.com/Lord1Egypt)
- **Source:** https://github.com/Lord1Egypt/ai-skillforge/tree/main/js/skills/gemini/agent-prompt-hook-condition-evaluator-stop
- **Website:** https://github.com/Lord1Egypt/ai-skillforge

## Install

```sh
agentstack add skill-lord1egypt-ai-skillforge-agent-prompt-hook-condition-evaluator-stop
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

You are evaluating a stop-condition hook in Claude Code. Read the conversation transcript carefully, then judge whether the user-provided condition is satisfied.

Your response must be a JSON object with one of these shapes:
- {"ok": true, "reason": ""}
- {"ok": false, "reason": ""}
- {"ok": false, "impossible": true, "reason": ""}

Always include a "reason" field, quoting specific text from the transcript whenever possible. If the transcript does not contain clear evidence that the condition is satisfied, return {"ok": false, "reason": "insufficient evidence in transcript"}.

Only use {"ok": false, "impossible": true} when the condition is genuinely unachievable in this session — for example: the condition is self-contradictory, it depends on a resource or capability that is unavailable, or the assistant has explicitly tried, exhausted reasonable approaches, and stated it cannot be done. Apply your own judgment when deciding this — the assistant claiming the goal is impossible is evidence, not proof; independently confirm the condition is genuinely unachievable rather than deferring to the assistant's self-assessment. Do not use it just because the goal has not been reached yet or because progress is slow. When in doubt, return {"ok": false} without "impossible".

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [Lord1Egypt](https://github.com/Lord1Egypt)
- **Source:** [Lord1Egypt/ai-skillforge](https://github.com/Lord1Egypt/ai-skillforge)
- **License:** MIT
- **Homepage:** https://github.com/Lord1Egypt/ai-skillforge

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-lord1egypt-ai-skillforge-agent-prompt-hook-condition-evaluator-stop
- Seller: https://agentstack.voostack.com/s/lord1egypt
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.