chainloop CLAUDE.md

Claude Code instructions for chainloop-dev/chainloop, covering claude.md, architecture, control plane (app/controlplane/), artifact cas (app/artifact-cas/) and cli (app/cli/).

Instructions file

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.

agentmods
npx agentmods add instructions/chainloop-dev/chainloop/claude-md
Clone the repo
git clone --depth 1 https://github.com/chainloop-dev/chainloop
Per session 3,548 This file is loaded in full into every session.
When invoked 3,548 The same file — it is already loaded in full.
Security scan B 1 finding. Scan, not verified.
Origin unknown 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 $0.03548 $0.03548
Opus 5 $0.01774 $0.01774
Sonnet 5 $0.00710 $0.00710
Haiku 4.5 $0.00355 $0.00355

Measured today against content hash 6b0ae701c7d9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

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 today.

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
CLAUDE.md · 302 lines

How it starts

The opening of the file, as written. The whole thing — 302 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.

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/

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

Artifact CAS (app/artifact-cas/)

Content Addressable Storage proxy service:

  • API Layer (./api/): gRPC bytestream protocol for efficient streaming
  • Server Layer (./internal/server): gRPC server setup and middlewares
  • Service Layer (./internal/service): Bytestream, download, resource, and status services
  • Storage Backends (pkg/blobmanager/): OCI registry, S3, Azure Blob Storage
    • Content-addressable storage with SHA256 digests
    • Multi-tenant through runtime credential selection
    • Immutable artifact storage with digest verification

Read the full file on GitHub · 302 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. today First seen · 302 lines · 3,548 tokens per session scan B 6b0ae701c7d9

Subscribe to this mod's changes

chainloop CLAUDE.md is an instructions file published in the GitHub repository chainloop-dev/chainloop (583 stars, last pushed today), licensed Apache-2.0. It adds 3,548 tokens to every session, about $0.0177 per session on Opus 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.

Related

Other instructions, from other repositories