a8-loom-coordinator: Instructions file for Claude Code

AGENTS.md

a8-loom-coordinator AGENTS.md is an instructions file for Claude Code, Codex, OpenCode from LoomA8osAgent/a8-loom-coordinator. It costs 1,568 tokens per session, scanned A, original, MIT.

A repository instruction file for a8-loom-coordinator, a configuration-based set of rules, skills, and hooks for running an AI agent as a senior software engineer. It uses a shared AGENTS.md format supported by multiple coding tools.

In plain words
What is it for?
It supports installing the coordinator as a Claude Code plugin and guiding agents through software projects across different languages and frameworks.
Why use it?
It tells agents to find and reuse what a project already provides before creating new code, helping work stay consistent with the existing codebase.

Instructions file for Claude CodeCodexOpenCode

Written for Claude Code and Codex and OpenCode: Claude Code plugin machinery, but also the file is AGENTS.md. Also seen: mentions Claude Code; mentions AGENTS.md; mentions Codex.

This is LoomA8osAgent/a8-loom-coordinator's own configuration. It tells Claude Code, Codex and OpenCode how to work on a8-loom-coordinator 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 a8-loom-coordinator configures →

Reuse

Borrowing it

Nothing to install: this file belongs to LoomA8osAgent/a8-loom-coordinator. 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/LoomA8osAgent/a8-loom-coordinator/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/LoomA8osAgent/a8-loom-coordinator

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.

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README.md
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Your own site
<a href="https://agentmods.dev/instructions/looma8osagent/a8-loom-coordinator/agents-md"><img src="https://agentmods.dev/badge/instructions/looma8osagent/a8-loom-coordinator/agents-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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/looma8osagent/a8-loom-coordinator/agents-md"><img src="https://agentmods.dev/badge/instructions/looma8osagent/a8-loom-coordinator/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,568 This file is loaded in full into every session.
When invoked 1,568 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 $0.01568 $0.01568
Opus 5.5 $0.00627 $0.00627
Sonnet 5.5 $0.00314 $0.00314
Haiku 4.5 $0.00157 $0.00157

Measured 1mo ago against content hash 3117461e4a6c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

a8-loom-coordinator 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 1mo 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 · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — a8-loom-coordinator

Cross-model agent guide (the AGENTS.md open standard — works with Codex CLI, Claude Code, Gemini CLI, Cursor, Cline, Devin, and 30+ tools). This file both governs agents working inside this repo and describes what the repo is for any agent that discovers it.

What this repo is

A config-driven governance, skills, and hooks stack for running an LLM as the autonomous senior engineer on a software project — any language, any framework, frontend or backend. The human is operator, ratifier, and spot-checker, not babysitter. Its one enforced idea: discover-then-reuse — before building anything, the agent must retrieve what the codebase already provides and reuse it, never hand-roll a fresh version. That is what makes LLM building deterministic against an existing codebase.

It is a reusable coordinator seat (the "Loom" seat) — model-portable by design, so Opus / Sonnet / Codex / Gemini / whatever-comes-next can sit in it. This is the first a8-loom-* project; more follow.

The spec catalog (0.3) — constraint BEFORE, not refusal after. The code registry is projected into a catalog plus a byte-capped catalog prompt the builder preloads instead of the raw ruleset; the builder emits a {helper, props, children} spec that can only name catalog entries; validation runs a lossless-only autofix, compilation emits the real helper calls plus an HMAC'd receipt, and hooks/spec-gate.js refuses a freehand new surface no receipt covers — reusing the new-surface detector that already exists. json-render (core + codegen) and zod are vendored, node-side only. Opt-in: specCatalog.enabled. See integrations/spec-catalog.md, tools/gen-catalog.js.

Install / use it in YOUR project

  • Claude Code plugin: /plugin marketplace add LoomA8osAgent/a8-loom-coordinator then /plugin install a8-loom-coordinator@a8-loom.
  • npx: npx a8-loom-coordinator init (scaffold config) then ... install (wire hooks).
  • Manual: clone, run hooks/install-hooks.sh, fill stack.config.json.

Read the full file on GitHub · 98 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. 1mo ago Changed · -21 lines · -430 tokens per session 3117461e4a6c
  2. 1mo ago Changed · +25 lines · +511 tokens per session 689a89f39ccf
  3. 1mo ago Changed · +16 lines · +318 tokens per session 6ded61ef2a10
  4. 1mo ago Changed · +15 lines · +284 tokens per session 4b9cc19580f9
  5. 2mo ago First seen · 63 lines · 885 tokens per session scan A aa661afa03f2

Subscribe to this mod's changes

a8-loom-coordinator AGENTS.md is an instructions file published in the GitHub repository LoomA8osAgent/a8-loom-coordinator (7 stars, last pushed 1mo ago), licensed MIT. It adds 1,568 tokens to every session, about $0.0063 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

a8-loom-coordinator AGENTS.md compared with instructions from other repositories

a8-loom-coordinator AGENTS.md next to 6 instructions from other repositories
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a8-loom-coordinator AGENTS.mdLoomA8osAgent/a8-loom-coordinatorInstructions file71mo agoMITA1,568Claude Code, Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
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vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file275k2d agoMITA4,313Codex, OpenCode