Borrowing it
Nothing to install: this file belongs to kouroshez/coding-os. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/kouroshez/coding-os/main/AGENTS.mdgit clone --depth 1 https://github.com/kouroshez/coding-osWrote 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.
[](https://agentmods.dev/instructions/kouroshez/coding-os/agents-md)<a href="https://agentmods.dev/instructions/kouroshez/coding-os/agents-md"><img src="https://agentmods.dev/badge/instructions/kouroshez/coding-os/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.
<a href="https://agentmods.dev/instructions/kouroshez/coding-os/agents-md"><img src="https://agentmods.dev/badge/instructions/kouroshez/coding-os/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.04641 | $0.04641 |
| Opus 5.5 | $0.01856 | $0.01856 |
| Sonnet 5.5 | $0.00928 | $0.00928 |
| Haiku 4.5 | $0.00464 | $0.00464 |
Grade A, and why
coding-os 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.
How it starts
The opening of the file, as written. The whole thing — 119 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS — Coding OS Development Protocol (META PROJECT)
Root entry point for agents working ON coding-os itself. Read first; re-read after context loss. Hard limit: keep this file under 120 lines — overflow goes to docs/. Architecture deep-dive: docs/architecture/meta-project.md.
Nature — Meta-Project
This repo IS the mother. Its output is projects shaped like itself: cos init composes three concentric layers (DNA → mRNA → phenotype) into a consumer project, and this repo is itself an instance of what it produces (P5 Dogfood; root CLAUDE.md symlinks to AGENTS.md).
src/core/— agent-agnostic, stack-agnostic kernel: hooks, MCP server, rules, skills. Cognitive layers on one MCP server (server.py): thinking_os (memory/learning/metrics) · graph_os (knowledge graph) · board_os (Scrumban).src/adapters/<agent>/— per-agent translation: how the kernel surfaces as.claude//.codex/.src/templates/<stack>/— per-stack overlay: skills + scaffold for one language/framework.
Modularity Map — Blast Radius
| Edit | Propagates to | Rebuild |
|---|---|---|
src/core/hooks/*.sh |
ALL consumer projects (live symlinks) | none |
src/core/thinking_os/** |
ALL projects pointing to this MCP | restart MCP client |
src/core/rules/*.md, src/core/skills/** |
ALL projects | cos update in consumer |
src/adapters/<agent>/** |
Only projects with that agent | cos update or re-run install.sh |
src/templates/<stack>/** |
Only projects using that stack | cos update + make manifest-regen |
src/cli/** |
ALL future cos invocations |
uv tool install --editable . |
Derived artifacts — never hand-edit: src/core/rules/{dimension-registry,skill-enforcement}.md, src/core/scaffold_manifest.json, src/adapters/*/*.template.*, tests/golden/** — regenerate via make regen-rules / manifest-regen / regen-adapter-templates.
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.
- 1mo ago Changed · +19 tokens per session 3879977dce01
- 1mo ago Changed · +35 tokens per session 092100849a39
- 1mo ago First seen · 119 lines · 4,587 tokens per session scan A ed87c6087676
coding-os AGENTS.md is an instructions file published in the GitHub repository kouroshez/coding-os (6 stars, last pushed 3d ago), licensed Apache-2.0. It adds 4,641 tokens to every session, about $0.0186 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
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langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.