agent-mesh-core: Instructions file for Codex

AGENTS.md

agent-mesh-core AGENTS.md is an instructions file for Codex, OpenCode from jcbmrrs/agent-mesh-core. It costs 6,611 tokens per session, scanned A, original, MIT.

Project-specific instructions for the agent-mesh-core repository. They explain the repository’s current implementation, documentation, visibility, and which design documents should or should not guide changes.

In plain words
What is it for?
They help agents work on the Python package, tests, deployment helpers, documentation, and repository release or visibility concerns.
Why use it?
They reduce confusion caused by outdated design documents and clarify where to find setup, operations, roadmap, and implementation information.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is jcbmrrs/agent-mesh-core's own configuration. It tells Codex and OpenCode how to work on agent-mesh-core 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 agent-mesh-core configures →

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/Shared/AgentMesh.

Reuse

Borrowing it

Nothing to install: this file belongs to jcbmrrs/agent-mesh-core. 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/jcbmrrs/agent-mesh-core/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/jcbmrrs/agent-mesh-core

Made for: 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 agent-mesh-core 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 agent-mesh-core AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/jcbmrrs/agent-mesh-core/agents-md"><img src="https://agentmods.dev/badge/instructions/jcbmrrs/agent-mesh-core/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 6,611 This file is loaded in full into every session.
When invoked 6,611 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 $0.06611 $0.06611
Opus 5.5 $0.02644 $0.02644
Sonnet 5.5 $0.01322 $0.01322
Haiku 4.5 $0.00661 $0.00661

Measured 2mo ago against content hash ff0170c06ffd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-mesh-core AGENTS.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.

AGENTS.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 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.

Repository status

This repository now contains the implemented agent-mesh-core Python package, tests, deployment helpers, and documentation. Use README.md for user-facing setup/onboarding, docs/OPERATIONS.md for Mac mini service operation, and docs/ROADMAP.md for current task tracking. docs/IMPLEMENTATION_PLAN_v2.md remains the concrete design/build plan and invariant reference. docs/archive/ holds the original design drafts (BACKGROUND.md, MULTI-AGENT-GUIDE.md, PROMPT.md, PROJECT-SETUP.md) for historical/rationale value only — they describe an earlier, superseded SMB-mount transport (see "Architecture decision" below) and should never be implemented literally.

Repository visibility: public since 2026-07-23

This repository is public on GitHub (jcbmrrs/agent-mesh-core), not a private working repo. docs/ROADMAP.md's completed TASK-14 did the one-time release pass (LICENSE, SECURITY.md, placeholder-style docs, personal-path scrub). That pass is done, but public visibility is now a standing property of the repo, not a one-off checklist — every subsequent change that touches docs, commit messages, or config needs the same scrutiny applied before it's pushed, not as a follow-up cleanup pass.

Before pushing any new commit that adds or edits docs, comments, config, or examples, check it for:

  • Real internal network details — Tailscale/LAN IPs, internal hostnames, VPN/tailnet names. Use a placeholder matching the existing style (<mac-mini-tailscale-ip>, <mac-mini-tailscale-host>) instead of a literal address, the same way README.md and docs/OPERATIONS.md already do.
  • Credentials or tokens of any kind — API keys, passwords, auth tokens, .env contents. These never belong in this repo regardless of visibility; public makes the cost of a mistake immediate instead of merely bad practice.
  • Other people's personal data — names, emails, or identifying details belonging to anyone other than Jacob. Not expected to come up in a single-operator project, but check example configs and test fixtures for accidentally-realistic data before assuming otherwise.

Read the full file on GitHub · 127 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. 2mo ago First seen · 127 lines · 6,611 tokens per session scan A ff0170c06ffd

Subscribe to this mod's changes

agent-mesh-core AGENTS.md is an instructions file published in the GitHub repository jcbmrrs/agent-mesh-core (0 stars, last pushed 3mo ago), licensed MIT. It adds 6,611 tokens to every session, about $0.0264 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.

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