review-flow: Skill for Claude Code

.claude/skills/discovery/SKILL.md

discovery is a skill for Claude Code from DGouron/review-flow. It costs 38 tokens per session (1,939 once invoked), scanned A, original, MIT.

A business-discovery guide used before writing technical specifications. It helps define the problem, the people affected, and the value of solving it, using documents such as personas, problem statements, and a Lean Canvas.

In plain words
What is it for?
For exploring a product idea, defining personas, clarifying a value proposition, writing problem statements, and creating a Lean Canvas in the project documentation.
Why use it?
It prevents a team from jumping straight into implementation before agreeing on the problem and intended users.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is DGouron/review-flow's own configuration. It tells Claude Code how to work on review-flow itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything review-flow configures →

Reuse

Borrowing it

Nothing to install: this file belongs to DGouron/review-flow. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/DGouron/review-flow/master/.claude/skills/discovery/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/DGouron/review-flow

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 discovery

README.md
[![agentmods](https://agentmods.dev/badge/skills/dgouron/review-flow/discovery/github.svg)](https://agentmods.dev/skills/dgouron/review-flow/discovery)
Your own site
<a href="https://agentmods.dev/skills/dgouron/review-flow/discovery"><img src="https://agentmods.dev/badge/skills/dgouron/review-flow/discovery/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 discovery

Your own site · 80×15
<a href="https://agentmods.dev/skills/dgouron/review-flow/discovery"><img src="https://agentmods.dev/badge/skills/dgouron/review-flow/discovery.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,939 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00038 $0.01939
Opus 5.5 $0.00015 $0.00776
Sonnet 5.5 $0.00008 $0.00388
Haiku 4.5 $0.00004 $0.00194

Measured 2mo ago against content hash b48114bbb36f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

discovery 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 2mo 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/discovery/SKILL.md · 369 lines

How it starts

The opening of the file, as written. The whole thing — 369 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Discovery - Business Exploration

Persona

Read .claude/roles/specifier.md — adopt this profile and follow all its rules.

Philosophy

Discovery comes BEFORE specs. We explore:

  • The problem — not the solution
  • The users — their pain points, not their requests
  • The value — the benefit, not the feature

"Fall in love with the problem, not the solution." — Uri Levine


Activation

This skill activates when the user wants to explore:

  • "I want to explore...", "What problem are we solving?"
  • "Who are the users?", "Discovery on..."
  • "What is the value proposition?"
  • "Lean canvas for...", "Persona of..."

Produced artifacts

Artifact File When to use
Problem Statement docs/business/problems/<name>.md Define the problem precisely
Persona docs/business/personas/<name>.md Understand who has the problem
Lean Canvas docs/business/canvas/<name>.md Overview of an opportunity

Workflow

Entry point

DISCOVERY - Start

You want to explore: [subject]

Where do we begin?
1. Problem Statement — What problem exactly?
2. Persona — Who has this problem?
3. Lean Canvas — Overview of the opportunity?

Choose your entry point, or tell me what you already know.

Problem Statement

Construction dialogue

PROBLEM STATEMENT - Exploration

I see: [vague description of the problem]

Let's dig deeper:
1. Who exactly has this problem?
2. When/where does it manifest?
3. What do they do today to work around it?
4. What is the consequence if we don't solve it?

Answer what resonates, we'll iterate.

Output template

File: docs/business/problems/<name>.md

# Problem Statement: [Explicit title]

## The problem

[Persona] encounters [problem] when [context/trigger].

Today, [persona] [current behavior / workaround].

This causes [negative consequence] and [measurable impact].

## Frequency and severity

| Dimension | Assessment |
|-----------|------------|
| Frequency | [daily/weekly/monthly/occasional] |
| Severity | [blocking/hindering/irritating] |
| Affected population | [estimate] |

## Hypotheses to validate

- [ ] [Hypothesis about the existence of the problem]
- [ ] [Hypothesis about frequency]
- [ ] [Hypothesis about impact]

## What the problem is NOT

- [Red herring 1 — why it's a red herring]
- [Red herring 2]

## Research questions

- [Open question to explore]

Read the full file on GitHub · 369 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. 2mo ago First seen · 369 lines · 38 tokens per session scan A b48114bbb36f

Subscribe to this mod's changes

discovery is a skill published in the GitHub repository DGouron/review-flow (44 stars, last pushed today), licensed MIT. It adds 38 tokens to every session and 1,939 once invoked, about $0.0002 per session on Opus 5.5. 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.

Related

Other skills, from other repositories

code-changes

Workflow for any task that ends in code changes: issue analysis or triage, pull request review comments, features, bug fixes, refactors. Invoke at the start of such a task, before reading or writing code.

JanDeDobbeleer/oh-my-posh · 48 tokens

release

Cut a brooks-lint release: set the version in package.json, propagate it across all four plugin manifests and every version-bearing text file (README badges, docs site metadata), write the CHANGELOG entry, validate, then commit, push, tag, and publish the GitHub release. Triggers when the maintainer asks to "release"…

hyhmrright/brooks-lint · 135 tokens

new-skill

Scaffold a new brooks-lint analysis skill so it passes npm run validate and npm run evals on the first try — generates skills/{name}/SKILL.md (with the mandatory "Do NOT trigger for:" clause and a Process section citing guide step ranges) plus skills/{name}/{name}-guide.md (sequentially numbered steps), then appends…

hyhmrright/brooks-lint · 145 tokens

brooks-audit

Architecture audit that maps module dependencies, checks layering integrity, and flags structural decay across a codebase, drawing on twelve classic engineering books. Triggers when: user asks to audit architecture, review folder/module structure, check for circular imports, understand how the codebase is organized…

hyhmrright/brooks-lint · 143 tokens

brooks-sweep

Full-sweep mode: runs a unified analysis across all quality dimensions — code decay, architecture, tech debt, and test quality — then applies fixes directly to the codebase. Safe changes are auto-applied; risky changes are confirmed before execution. Drawing on twelve classic engineering books. Triggers when: user…

hyhmrright/brooks-lint · 178 tokens

brooks-debt

Tech debt assessment that identifies, classifies, and prioritizes maintainability problems — helping teams build a refactoring roadmap — drawing on twelve classic engineering books. Triggers when: user asks about tech debt, refactoring priorities, what to clean up first, or asks "why is this so hard to change?", "what…

hyhmrright/brooks-lint · 131 tokens