Borrowing it
Nothing to install: this file belongs to incubateur-ademe/benefriches. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/incubateur-ademe/benefriches/main/CLAUDE.mdgit clone --depth 1 https://github.com/incubateur-ademe/benefrichesWrote 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/instructions/incubateur-ademe/benefriches/claude-md)<a href="https://agentmods.dev/instructions/incubateur-ademe/benefriches/claude-md"><img src="https://agentmods.dev/badge/instructions/incubateur-ademe/benefriches/claude-md/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/instructions/incubateur-ademe/benefriches/claude-md"><img src="https://agentmods.dev/badge/instructions/incubateur-ademe/benefriches/claude-md.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 | $0.02107 | $0.02107 |
| Opus 5 | $0.01053 | $0.01053 |
| Sonnet 5 | $0.00421 | $0.00421 |
| Haiku 4.5 | $0.00211 | $0.00211 |
Grade A, and why
benefriches CLAUDE.md 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.
How it starts
The opening of the file, as written. The whole thing — 197 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Benefriches - Monorepo Guide
Purpose: Context for AI assistants and developers. For app-specific patterns, see individual CLAUDE.md files.
Quick Lookup
| I need to... | Go to... |
|---|---|
| Add API feature | apps/api/CLAUDE.md |
| Add Web feature | apps/web/CLAUDE.md |
| Add E2E test | apps/e2e-tests/CLAUDE.md |
| Add shared type/DTO | packages/shared/CLAUDE.md |
| See complete feature example | docs/feature-example.md |
| Run quality checks | Standard Commands |
Critical DON'Ts
- Don't use
npm- Always usepnpm - Don't skip reinstalling
shared- Always reinstall in dependent apps after changes (see Shared Package Workflow) - Don't add framework deps to
shared- Keep it pure TypeScript only - Don't skip cross-app testing - Changes to
sharedcan break bothapiandweb - Don't commit without quality checks - Husky pre-commit hooks enforce lint + format (tests must be run manually)
- Don't use relative imports across apps - Use workspace protocol:
import from "shared" - Don't modify database without migration - Create a Knex migration for all schema changes
- Don't add an env var without updating env files - Add to the relevant app's
.env.example(empty/off),.env.e2eat the repo root (with the value needed for e2e tests), ANDdocker-compose.e2e.ymlunder the relevant service'senvironment:block - Don't duplicate Zod schemas - Before writing a new Zod schema, check
packages/sharedfor reusable ones (e.g.,surfaceAreaSchema,soilsDistributionSchema) - Don't bypass the Talisman pre-commit hook — Talisman scans commits for secrets (API keys, tokens, private keys). Never use
--no-verifyto skip it.
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.
- 12d ago First seen · 197 lines · 2,107 tokens per session scan A 8c1f48ced5e3
benefriches CLAUDE.md is an instructions file published in the GitHub repository incubateur-ademe/benefriches (45 stars, last pushed 3d ago), licensed MIT. It adds 2,107 tokens to every session, about $0.0105 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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