agentsmesh: Instructions file for Codex

AGENTS.md

agentsmesh AGENTS.md is an instructions file for Codex, OpenCode from sampleXbro/agentsmesh. It costs 1,856 tokens per session, scanned A, original, MIT.

AGENTS.md instructions for agentsmesh, a project that keeps coding-agent rules and tools in one source and generates configuration for different assistants. They define the generation workflow and require checking recorded lessons before edits.

In plain words
What is it for?
Use them when adding or changing agentsmesh rules, commands, skills, hooks, permissions, or generated assistant configurations.
Why use it?
They prevent edits to generated files from being overwritten and help agents follow project-specific operational rules.

Instructions file for CodexOpenCode

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

This is sampleXbro/agentsmesh's own configuration. It tells Codex and OpenCode how to work on agentsmesh 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 agentsmesh configures →

Reuse

Borrowing it

Nothing to install: this file belongs to sampleXbro/agentsmesh. 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/sampleXbro/agentsmesh/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/sampleXbro/agentsmesh

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 agentsmesh AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/samplexbro/agentsmesh/agents-md.svg)](https://agentmods.dev/instructions/samplexbro/agentsmesh/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/samplexbro/agentsmesh/agents-md"><img src="https://agentmods.dev/badge/instructions/samplexbro/agentsmesh/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,856 This file is loaded in full into every session.
When invoked 1,856 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.01856 $0.01856
Opus 5 $0.00928 $0.00928
Sonnet 5 $0.00371 $0.00371
Haiku 4.5 $0.00186 $0.00186

Measured 2d ago against content hash abe071fd784f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

agentsmesh 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 2d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AgentsMesh Generation Contract

NEVER edit generated files (.claude/, .cursor/, AGENTS.md, .github/copilot-instructions.md, and similar target outputs) — agentsmesh generate overwrites them. All changes MUST go through .agentsmesh first: edit rules/_root.md, rules/*.md, commands/*.md, agents/*.md, skills/*/SKILL.md plus supporting files, mcp.json, hooks.yaml, permissions.yaml, and ignore; agentsmesh.yaml selects targets/features (agentsmesh.local.yaml overrides locally); if missing run agentsmesh init, use agentsmesh import --from <tool> for native configs, agentsmesh install <source> or install --sync for reusable packs, then run agentsmesh generate. Use diff, lint, check, watch, matrix, merge, and refresh as needed.

Lessons (BLOCKING)

Graph .agentsmesh/lessons/lessons.json is canonical; never hand-edit it. Manual: lessons skill.

Recall: before every file edit or state-changing command, MUST run agentsmesh lessons query --file <path> --cmd <command> --session auto and obey matches; at task start, ALSO run agentsmesh lessons query --keyword "<task terms>" --always --session auto for conceptual + universal rules no path/command names. Pure-read commands and recall itself are exempt.

Capture: after any failure, user correction, regression, wrong assumption, useful surprise, repeated friction, or non-obvious fix, MUST self-critique and run agentsmesh lessons add "<imperative rule>" --topic <id> --trigger-file <glob> --evidence <sha|lesson-id>.

Before final: report Lesson: captured <id> or Lesson: none. No recall/capture gate = task incomplete. No shell: use lessons_query / lessons_add.

Operational Guidelines

Workflow

Planning

  • Enter plan mode for any non-trivial task (3+ steps or architectural decisions). Write plan to tasks/todo.md.
  • If something goes sideways, STOP and re-plan — don't keep pushing.
  • Check in before starting implementation. Mark items complete as you go.

Read the full file on GitHub · 99 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. 2d ago First seen · 99 lines · 1,856 tokens per session scan A abe071fd784f

Subscribe to this mod's changes

agentsmesh AGENTS.md is an instructions file published in the GitHub repository sampleXbro/agentsmesh (24 stars, last pushed yesterday), licensed MIT. It adds 1,856 tokens to every session, about $0.0093 per session on Opus 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 2026-09-03.

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