CLAUDE.md examples from real projects

How real projects brief Claude Code: the commands, conventions and warnings they put in CLAUDE.md.

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Jwuthri

JwuthriReads credentialsCLAUDE.md

Tracely-ai

Jwuthri/Tracely-ai/CLAUDE.md

Tracely is trace-native CI/CD for AI agents: production trace → failure detection → regression test → CI/CD gate. The trace is the source of truth; evals, clusters, cases, gates and trends are all derived from it. There are no hand-authored datasets. A uv workspace (backend, workers, sdk) plus a pnpm Next.js app (frontend) and a Nextra docs site (docs). Tests — no infra required, ~6s: Alembic: cd backend && uv run alembic revision -m "…" / alembic upgrade head. ClickHouse…

1.5k3mo agoReviewMount

CLAUDE.md vs AGENTS.md

About CLAUDE.md

What is CLAUDE.md?

A file Claude Code reads at the start of every session. It holds the commands, conventions and warnings the agent needs for this project.

Where does it go?

At the repository root. Claude Code also reads CLAUDE.md files in subdirectories when it works there.

What should it contain?

Build and test commands, the project's layout, conventions that aren't obvious from the code, and mistakes to avoid. Short files tend to work better than long ones.

CLAUDE.md or AGENTS.md?

Claude Code reads CLAUDE.md; most other agents read AGENTS.md. Many projects keep one and point the other at it.