challenge

challenge is a skill for Claude Code from lenar-amirov/product-pipeline-public. It costs 81 tokens per session (633 once invoked), scanned A, original, MIT.

A rehearsal that puts a product presentation under hostile questioning before a formal review, using the evidence behind its claims.

In plain words
What is it for?
Use it to practise Gate 1 or Gate 2 reviews, test claims about money and market size, and find gaps in a presentation, evidence registry, or previous commitments.
Why use it?
It exposes unsupported numbers, weak evidence, unresolved data conflicts, and missing goals before they can undermine the real presentation.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to practise Gate 1 or Gate 2 reviews, test claims about money and market size, and find gaps in a presentation, evidence registry, or previous commitments.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/lenar-amirov/product-pipeline-public/challenge
Install

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.

Any agent
npx skills add lenar-amirov/product-pipeline-public --skill challenge
Clone the repo
git clone --depth 1 https://github.com/lenar-amirov/product-pipeline-public

Made for: Claude Code.

Wrote 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.

agentmods badge for challenge

README.md
[![agentmods](https://agentmods.dev/badge/skills/lenar-amirov/product-pipeline-public/challenge/github.svg)](https://agentmods.dev/skills/lenar-amirov/product-pipeline-public/challenge)
Your own site
<a href="https://agentmods.dev/skills/lenar-amirov/product-pipeline-public/challenge"><img src="https://agentmods.dev/badge/skills/lenar-amirov/product-pipeline-public/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.

agentmods 80×15 button for challenge

Your own site · 80×15
<a href="https://agentmods.dev/skills/lenar-amirov/product-pipeline-public/challenge"><img src="https://agentmods.dev/badge/skills/lenar-amirov/product-pipeline-public/challenge.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 633 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00081 $0.00633
Opus 5 $0.00041 $0.00316
Sonnet 5 $0.00016 $0.00127
Haiku 4.5 $0.00008 $0.00063

Measured 12d ago against content hash 56a75f16e14a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

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 12d 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.

.claude/skills/challenge/SKILL.md · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Challenge — /challenge [gate1|gate2|<file>]

The cheapest place to lose a gate is in rehearsal. Attack the PM's deck the way the real audience will — armed with the registry, which knows exactly where the evidence is thin.

0. Preconditions first

Run python3 tools/scripts/validate-evidence.py --gate <dir> — it checks three things: ≥2 hypotheses confirmed REAL, zero registry violations (ranges, unreconciled data_inconsistency), Frame complete (metric / baseline / target / kill criteria). If GATE BLOCKED — stop: report the blockers and the fastest way to clear each one. Rehearsing a deck built on unreconciled numbers wastes the PM's time.

1. Load the ammunition

  • The deck: output/presentation.md (Gate 1) or output/gate2-presentation.md
  • The registry: hypotheses.py show <dir> — statuses, confidences, flags, sources per hypothesis
  • CONTEXT.md — the promised metric/target
  • Last decisions.md entries — anything promised earlier and not delivered

2. Attack in three personas (in order)

CFO / sponsor — attacks the money and the sizing:

  • Where does the effect estimate come from? Which registry source backs each number on the sizing slide?
  • What's the cost of being wrong? Kill criteria defined?
  • "Why this and not the other initiative competing for the same team?"

VP Product — attacks the problem-solution link:

  • Which slide claims rest on SYNTHETIC/INFERRED evidence presented as fact? (cross-check every proof slide against the registry — this is the highest-yield attack)
  • Refuted or flagged hypotheses: does the deck quietly rely on any?
  • Segment sizes: do funnel numbers on different slides agree?

Skeptic engineer / analyst — attacks the data:

  • Metric definitions: same metric, same definition on every slide?
  • data_inconsistency flags: "these two numbers contradict — which is true?"
  • Baseline windows and seasonality; sample sizes for any test claims.

3. Report

For each hit: slide/claim → the attack question → severity (fatal / painful / cosmetic) → how to fix before the gate (patch the slide, move to speaker notes, reconcile the number, downgrade the claim). Fatal = presentation should not go out; list fatals first. End with the 3 questions most likely to actually be asked, and suggested answers backed by registry sources.

Read the full file on GitHub · 57 lines

Changes

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.

  1. 12d ago First seen · 57 lines · 81 tokens per session scan A 56a75f16e14a

Subscribe to this mod's changes

challenge is a skill published in the GitHub repository lenar-amirov/product-pipeline-public (12 stars, last pushed 22d ago), licensed MIT. It adds 81 tokens to every session and 633 once invoked, about $0.0004 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 2026-08-30.

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