egregore: Instructions file for Claude Code

AGENTS.md

egregore AGENTS.md is an instructions file for Claude Code, Codex, OpenCode from egregore-labs/egregore. It costs 7,587 tokens per session, scanned B, original, MIT.

An agent protocol for Egregore, a workspace that supports several coding-agent runtimes, including Claude Code, Pi, Prime Agent, and Codex. It explains which instructions each runtime should follow and how agents communicate or hand off work.

In plain words
What is it for?
Use it when starting work in Egregore, identifying the active agent harness, following the correct project instructions, or managing handoffs.
Why use it?
It prevents an agent from applying the wrong startup procedure or configuration for the runtime it is using.

Instructions file for Claude CodeCodexOpenCode

Written for Claude Code and Codex and OpenCode: PreToolUse hook event, but also the file is AGENTS.md. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions Claude Code.

This is egregore-labs/egregore's own configuration. It tells Claude Code, Codex and OpenCode how to work on egregore 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 egregore configures →

Reuse

Borrowing it

Nothing to install: this file belongs to egregore-labs/egregore. 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/egregore-labs/egregore/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/egregore-labs/egregore

Made for: Claude Code, Codex, OpenCode.

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 egregore AGENTS.md

README.md
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Your own site
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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 egregore AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/egregore-labs/egregore/agents-md"><img src="https://agentmods.dev/badge/instructions/egregore-labs/egregore/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 7,587 This file is loaded in full into every session.
When invoked 7,587 The same file — it is already loaded in full.
Security scan B 2 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 $0.07587 $0.07587
Opus 5.5 $0.03035 $0.03035
Sonnet 5.5 $0.01517 $0.01517
Haiku 4.5 $0.00759 $0.00759

Measured 24d ago against content hash 1aadeebf6b79, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

egregore AGENTS.md scanned grade B with 2 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 24d 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.

Subtle steeringmediumPrompt injection

Instructions that bias recommendations or shape behaviour without the user noticing.

- Never tell the user to "ask their admin" for credentials. The user IS the admin.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Run `catalog` only when the route is unclear. Named reads return bounded stable fields and exact canonical `evidencePath` pointers; open only the returned files needed to answer. When a read reports partial coverage, use
AGENTS.md · 505 lines

How it starts

The opening of the file, as written. The whole thing — 505 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Egregore Agent Protocol

Runtime precedence — read this first.

Claude Code or an agent loading .claude/: stop here. Follow CLAUDE.md and .claude/, including their greeting and branch rules. Skip startup below; use Egregore skills instead of bin/agent.sh where covered.

Pi or Prime: stop here. Follow .pi/APPEND_SYSTEM.md or .prime/agent/APPEND_SYSTEM.md and that runtime's workflows, not the Codex block.

If you are Codex or another shell-only agent: this file is yours — continue.

Shared mechanics live in bin/; canonical organizational context lives in memory/. The generated contract below governs Codex sessions.

Startup

Ordinary recall: Supplied Runtime guidance or its reminder takes precedence over generic skill invocation: use it directly without loading the search skill. Explicit skill requests still apply. Reuse evidence for answers and citations; open only missing windows and batch independent reads. Stale sources require fresh evidence.

Reuse the launcher's startup and actor receipts; do not repeat startup. For a direct session without those receipts, read egregore.json and run bash bin/codex-session-start.sh once. Use Runtime-resolved identity and the retrieval rules below, not a guessed handle or a raw memory scan.

Communication

Use installed Egregore skills and shell adapters. Bridge examples and Markdown formats: docs/AGENT-PROTOCOL.md. Follow the generated contract below.

Handoffs vs Emissaries

Internal handoffs use bin/agent.sh handoff (memory/handoffs/ + index, via bin/handoff-run.sh). External capsules use egregore-emissary. Never use deprecated egregore-handoff for internal handoffs.

Compatibility

Claude Code follows CLAUDE.md; other shell agents use the generated contract below. All runtimes share canonical memory.

Egregore on Codex

You are a collaborator inside Egregore — a shared intelligence layer for organizations using AI coding agents. You operate through Git-based shared memory, Egregore skills, and conventions that accumulate knowledge across sessions and people. You are not a tool. You are a participant.

Read the full file on GitHub · 505 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. 24d ago Changed · +2 lines · -190 tokens per session 1aadeebf6b79
  2. 1mo ago Changed · +2 lines · +10 tokens per session ce95fcc291ed
  3. 1mo ago First seen · 501 lines · 7,767 tokens per session scan B 1fecaf3925a7

Subscribe to this mod's changes

egregore AGENTS.md is an instructions file published in the GitHub repository egregore-labs/egregore (293 stars, last pushed 9d ago), licensed MIT. It adds 7,587 tokens to every session, about $0.0303 per session on Opus 5.5. A static security scan graded it B with 2 findings (subtle steering, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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