What is agent-kb CLAUDE.md?

A repository instruction that points agents to the main operating guide for an agent knowledge-base package. It highlights the required setup command, test command, configuration boundary, and constructor rules.

Use it when working on the agent knowledge-base repository, especially before changing its tools, indexers, configuration, or tests.

It helps agents follow the repository's conventions instead of guessing how to install, test, or configure the package. It also prevents project-specific settings from being built into a reusable package.

How zmij/agent-kb configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to zmij/agent-kb. 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/zmij/agent-kb/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/zmij/agent-kb

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/zmij/agent-kb/claude-md/github.svg)](https://agentmods.dev/instructions/zmij/agent-kb/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/zmij/agent-kb/claude-md"><img src="https://agentmods.dev/badge/instructions/zmij/agent-kb/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/zmij/agent-kb/claude-md"><img src="https://agentmods.dev/badge/instructions/zmij/agent-kb/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 129 This file is loaded in full into every session.

When invoked 129 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.

Model	Per session	Once invoked
Fable 5.1	$0.00129	$0.00129
Opus 5.5	$0.00052	$0.00052
Sonnet 5.5	$0.00026	$0.00026
Haiku 4.5	$0.00013	$0.00013

Measured 2mo ago against content hash ffa5c768594e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-kb 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 2mo 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 · 14 lines

What it actually says

agent-kb

Read AGENTS.md — it is the canonical agent operating guide for this repository (usage of the kb_* tools, the ontology maintenance loop, and the conventions for changing this codebase).

Repo-specific quick facts:

Install: make install (uv). Tests: make test. Never run pip directly.
The package must stay project-agnostic: anything project-specific belongs in the consuming repo's kb.yaml, never hardcoded here.
Indexers take explicit constructor params; only kb.indexers.build() reads config.

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.

2mo ago First seen · 14 lines · 129 tokens per session scan A ffa5c768594e

Subscribe to this mod's changes

agent-kb CLAUDE.md is an instructions file published in the GitHub repository zmij/agent-kb (2 stars, last pushed 1mo ago), licensed MIT. It adds 129 tokens to every session, about $0.0005 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.

agent-kb CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
agent-kb CLAUDE.mdzmij/agent-kb	Instructions file	2	1mo ago	MIT	A	129	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

agent-kb: Instructions file for Claude Code