Borrowing it
Nothing to install: this file belongs to chainloop-dev/chainloop. 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/chainloop-dev/chainloop/main/CLAUDE.mdgit clone --depth 1 https://github.com/chainloop-dev/chainloopWrote 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/chainloop-dev/chainloop/claude-md)<a href="https://agentmods.dev/instructions/chainloop-dev/chainloop/claude-md"><img src="https://agentmods.dev/badge/instructions/chainloop-dev/chainloop/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/chainloop-dev/chainloop/claude-md"><img src="https://agentmods.dev/badge/instructions/chainloop-dev/chainloop/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 | $0.03767 | $0.03767 |
| Opus 5.5 | $0.01507 | $0.01507 |
| Sonnet 5.5 | $0.00753 | $0.00753 |
| Haiku 4.5 | $0.00377 | $0.00377 |
Grade B, and why
chainloop CLAUDE.md scanned grade B with 1 finding 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 5d 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
echo "127.0.0.1 dex" | sudo tee -a /etc/hosts How it starts
The opening of the file, as written. The whole thing — 307 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Overview
Chainloop is an open-source evidence store for Software Supply Chain attestations, SBOMs, VEX, SARIF, and other compliance artifacts. The project consists of three main components: a Control Plane (server), Artifact Content Addressable Storage (CAS), and a CLI client.
Design Specs
Design specs live in docs/specs/. Each one records an intended design and its reasons. Read the relevant spec before you change that behavior. Cite requirement IDs (for example R-001) in PRs that implement them. When a change goes against an implemented spec, say so in the PR, and propose a new spec for a large change. Do not edit an implemented spec's design. Never put customer or user information in a spec. Parent tickets for specs live in the GitHub issues of this repository. Create and update specs with br:eng-spec, never by hand-rolling a new format.
Architecture
The codebase follows a microservices architecture with three main components and shared libraries:
Control Plane (app/controlplane/)
Main backend service implementing hexagonal architecture:
- API Layer (
./api/): Protobuf definitions and generated gRPC/HTTP services - Server Layer (
./internal/server): HTTP/gRPC servers, middlewares, and request handling - Service Layer (
./internal/service): Protocol buffer service implementations - Business Layer (
./pkg/biz): Core business logic and repository abstractions- Organizations, workflows, attestations, API tokens, groups, projects
- CAS backend management, integrations, user access control
- Policy evaluation and referrer management
- Data Layer (
./pkg/data): Repository implementations using Ent ORM- PostgreSQL with Atlas migrations in
./pkg/data/ent/migrate/migrations/ - Ent schemas in
./pkg/data/ent/schema/
- PostgreSQL with Atlas migrations in
Dependencies: OIDC provider, PostgreSQL, Secret storage (Vault/AWS/GCP/Azure), Artifact CAS Authentication: JWT tokens, OIDC delegation, RBAC with Casbin Key Features: Multi-tenancy, workflow contracts, policy as code, audit logging
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.
- 5d ago Changed c1710079a3bf
- 18d ago Changed · +1 lines · +68 tokens per session bb90b1c38580
- 19d ago Changed 9d95278ee0eb
- 26d ago Changed · +4 lines · +129 tokens per session 1706f44922fd
- 1mo ago Changed · +22 tokens per session 35288da1270a
- 1mo ago First seen · 302 lines · 3,548 tokens per session scan B 6b0ae701c7d9
chainloop CLAUDE.md is an instructions file published in the GitHub repository chainloop-dev/chainloop (606 stars, last pushed 4d ago), licensed Apache-2.0. It adds 3,767 tokens to every session, about $0.0151 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.
Other instructions, from other repositories
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Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.