atrib: Instructions file for Claude Code

CLAUDE.md

atrib CLAUDE.md is an instructions file for Claude Code from creatornader/atrib. It costs 20,380 tokens per session, scanned A, original, Apache-2.0.

Instructions for atrib, a protocol that creates signed, linked records of actions taken by AI agents. These records can be checked independently through a public Merkle log, a tamper-evident record structure.

In plain words
What is it for?
Use it when recording tool calls, payments, observations, revisions, or lookups that need an independently verifiable history.
Why use it?
It helps make agent actions auditable and verifiable instead of relying only on the operator’s claims. It also explains how hosts and later workflows can check and carry forward signed context.

Instructions file for Claude Code

Written for Claude Code: SessionStart hook event. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

This is creatornader/atrib's own configuration. It tells Claude Code how to work on atrib 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 atrib configures →

Reuse

Borrowing it

Nothing to install: this file belongs to creatornader/atrib. 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/creatornader/atrib/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/creatornader/atrib

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 atrib CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/creatornader/atrib/claude-md/github.svg)](https://agentmods.dev/instructions/creatornader/atrib/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/creatornader/atrib/claude-md"><img src="https://agentmods.dev/badge/instructions/creatornader/atrib/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.

agentmods 80×15 button for atrib CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/creatornader/atrib/claude-md"><img src="https://agentmods.dev/badge/instructions/creatornader/atrib/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 20,380 This file is loaded in full into every session.
When invoked 20,380 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.20380 $0.20380
Opus 5.5 $0.08152 $0.08152
Sonnet 5.5 $0.04076 $0.04076
Haiku 4.5 $0.02038 $0.02038

Measured 4d ago against content hash 9c2cfdaf9f08, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

atrib 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 4d 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.md · 440 lines

How it starts

The opening of the file, as written. The whole thing — 440 lines — stays where its author put it; the contents beside it link to each section on GitHub.

atrib: the protocol for verifiable agent actions

What this is

atrib makes the actions an AI agent takes provable. Every agent action becomes a signed, chain-linked record committed to a public Merkle log. Downstream consumers (the agent itself, merchants, auditors, other agents) can independently verify what happened without trusting any operator.

Product teams can put that record in the action path. A host can check an action before it runs, and later work can carry the signed context forward. atrib records tool calls (MCP via @atrib/mcp-wrap, framework-native via @atrib/agent or @atrib/openinference), transactions (six payment-related completion cases per the payments profile: ACP, UCP, x402, MPP, AP2, a2a-x402), and the agent's own intentional records and reads through the two cognitive verbs: attest (write: observation by default, annotation via ref.kind: "annotates", revision via ref.kind: "revises") and recall (read: shape-dispatched lookups, lineage walks, and handoff verification). The seven legacy primitive names (emit, atrib-annotate, atrib-revise, the recall_* family, trace, summarize, atrib-verify) stay mounted as permanent aliases over the same handlers per D164; records are byte-identical either way.

The same substrate supports agent recall, third-party audit, commerce settlement, handoffs, and controlled high-impact actions when a harness or runtime puts atrib records in the action path. atrib sits between identity (DIF/W3C) and payment or commerce surfaces (ACP/UCP/x402/MPP/AP2). It also makes post-hoc claims about agent activity provable.

When explaining the graph, keep the D118 framing stable: atrib has one graph with two reading planes. The chronology plane records event history and continuity. The declared-relationship plane records signed claims about which records informed, anchored, annotated, or revised other records. /v1/chain and /v1/trace are projections over that graph, and the explorer primary trace path is a product presentation rule over both projections.

Read the full file on GitHub · 440 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. 4d ago Changed · +53 tokens per session 9c2cfdaf9f08
  2. 11d ago Changed · +6 lines · +118 tokens per session badcb96a1ab6
  3. 12d ago Changed · +12 tokens per session 9b24f2fdaa3c
  4. 1mo ago Changed · -1 tokens per session 464e1729bd8e
  5. 1mo ago First seen · 434 lines · 20,198 tokens per session scan A bb4217ea4e31

Subscribe to this mod's changes

atrib CLAUDE.md is an instructions file published in the GitHub repository creatornader/atrib (8 stars, last pushed 2d ago), licensed Apache-2.0. It adds 20,380 tokens to every session, about $0.0815 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 2026-08-31.

Related

Other instructions, from other repositories