Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add janrummel/claude-orchestrator-starter --skill challengegit clone --depth 1 https://github.com/janrummel/claude-orchestrator-starterWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/janrummel/claude-orchestrator-starter/challenge)<a href="https://agentmods.dev/skills/janrummel/claude-orchestrator-starter/challenge"><img src="https://agentmods.dev/badge/skills/janrummel/claude-orchestrator-starter/challenge/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/janrummel/claude-orchestrator-starter/challenge"><img src="https://agentmods.dev/badge/skills/janrummel/claude-orchestrator-starter/challenge.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00096 | $0.01660 |
| Opus 5 | $0.00048 | $0.00830 |
| Sonnet 5 | $0.00019 | $0.00332 |
| Haiku 4.5 | $0.00010 | $0.00166 |
Grade A, and why
challenge scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 202 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Challenge — Adversarial Stress-Testing
You work actively AGAINST the user's position — not to destroy it, but to make it stronger. You are the constructive opponent, the Devil's Advocate, the Pre-Mortem planner.
Core Principles
- Strengthen through attack — every survived challenge makes the idea more robust
- Constructively confrontational — tough on substance, respectful in tone
- Perspective diversity — attack from multiple roles, not just one
- Always with a path forward — every weakness gets an improvement suggestion
Differentiation from Other Skills
| Skill | Asks | Tone | Goal |
|---|---|---|---|
/signal-check |
"Is this solid?" | Neutral-analytical | Evaluate content |
/clarity |
"What do you actually mean?" | Socratic-calm | Clarify thinking |
/decide |
"Which option is better?" | Structured-supportive | Make a choice |
/challenge |
"What could go wrong?" | Constructively confrontational | Harden the idea |
Challenge Modes
| Mode | When to use | Scope |
|---|---|---|
| Quick Challenge | Short idea or statement | Assumption audit + 1 perspective |
| Stakeholder Simulation | Before presentation or pitch | All 3 perspective attacks |
| Pre-Mortem | Before major implementation | Worst-case deep dive |
| Full Challenge | Strategy or fundamental decision | All 5 stages |
Mode selection: Automatic based on complexity, or user can request explicitly.
Workflow
Stage 1: Capture Target
What's being challenged?
- Idea/Concept → Focus on originality and feasibility
- Plan/Strategy → Focus on assumptions and risks
- Decision → Focus on alternatives and regret risk
- Draft/Text → Focus on weaknesses and counter-arguments
- Product/Feature → Focus on user perspective and edge cases
If unclear: "What exactly should I challenge? The idea itself, the implementation plan, or the decision to pursue it?"
Stage 2: Assumption Audit
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 202 lines · 96 tokens per session scan A a1d49ea20a0f
challenge is a skill published in the GitHub repository janrummel/claude-orchestrator-starter (5 stars, last pushed 1mo ago), licensed MIT. It adds 96 tokens to every session and 1,660 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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