# 02 Challenge

> Rethink prior work to verify correctness against an agreed plan, classifying findings as deal-breakers, suggestions, or correct, with a confidence score. Use when the user says "challenge this", "rethink your plan", "is this correct", "review my last decision", "challenge my decision", "challenge what you did", "is my decision right", "criticize this", "find flaws", or asks for a critical review…

- **Type:** Skill
- **Install:** `agentstack add skill-ai-driven-dev-framework-02-challenge`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [ai-driven-dev](https://agentstack.voostack.com/s/ai-driven-dev)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [ai-driven-dev](https://github.com/ai-driven-dev)
- **Source:** https://github.com/ai-driven-dev/framework/tree/main/plugins/aidd-refine/skills/02-challenge
- **Website:** https://www.ai-driven-dev.fr/

## Install

```sh
agentstack add skill-ai-driven-dev-framework-02-challenge
```

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

## About

# Challenge

Rethink prior work and surface what is wrong, missing, or duplicated. Output a structured report with a confidence score so the user knows whether to ship, iterate, or rework.

## Available actions

| #   | Action      | Role                                                          | Input                          |
| --- | ----------- | ------------------------------------------------------------- | ------------------------------ |
| 01  | `challenge` | Rethink prior work, classify findings, score confidence       | review_target + agreed_plan    |

## Default flow

Single action skill. The router dispatches to `challenge` whenever the trigger phrases above appear.

## Transversal rules

- Think in first principles. Every step must be logical, with no gap and no missing information.
- Challenge own assumptions and the user's decisions before declaring confidence.
- Look for edge cases, errors, inconsistencies, missing parts, duplications, and optimizations.
- Aim for simplifications. If the work can be smaller, say so.
- Output the structured report verbatim per the action's `## Outputs` block.

## References

- `@references/confidence-rubric.md`: tiered rubric for the confidence percentage.

## Assets

- None.

## External data

- None.

## Source & license

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

- **Author:** [ai-driven-dev](https://github.com/ai-driven-dev)
- **Source:** [ai-driven-dev/framework](https://github.com/ai-driven-dev/framework)
- **License:** MIT
- **Homepage:** https://www.ai-driven-dev.fr/

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-ai-driven-dev-framework-02-challenge
- Seller: https://agentstack.voostack.com/s/ai-driven-dev
- 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%.