turbo: Instructions file for Codex

AGENTS.md

turbo AGENTS.md is an instructions file for Codex, OpenCode from tobihagemann/turbo. It costs 449 tokens per session, scanned A, original, MIT.

A repository guide for Turbo, a collection of coding-agent skills that can be combined into larger workflows. It describes the project layout and the files that define each skill.

In plain words
What is it for?
Use it when working on Turbo's Codex or Claude Code editions, composing skills, or checking conventions and supporting files.
Why use it?
It gives coding agents the context needed to find, use, and extend Turbo skills correctly.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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 turbo AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/tobihagemann/turbo/agents-md.svg)](https://agentmods.dev/instructions/tobihagemann/turbo/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/tobihagemann/turbo/agents-md"><img src="https://agentmods.dev/badge/instructions/tobihagemann/turbo/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 449 This file is loaded in full into every session.
When invoked 449 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 $0.00449 $0.00449
Opus 5 $0.00225 $0.00225
Sonnet 5 $0.00090 $0.00090
Haiku 4.5 $0.00045 $0.00045

Measured 8d ago against content hash c8d2491e0748, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

turbo 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 8d 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 · 33 lines

What it actually says

Turbo

Turbo is a modular collection of agentic coding skills with sibling editions for Claude Code and Codex. Skills connect into larger pipelines like $finalize and $review-pr. See README.md for the full overview and dependency graph.

Project Structure

codex/                    # Codex edition (canonical Codex tree)
├── skills/<skill-name>/
│   ├── SKILL.md          # Skill definition (YAML frontmatter + markdown body)
│   ├── scripts/          # Optional supporting scripts
│   ├── references/       # Optional reference documentation
│   └── assets/           # Optional templates or boilerplate
├── SETUP.md
├── UPDATE.md
├── MIGRATION.md
├── ADDITIONS.md
└── SKILL-CONVENTIONS.md
claude/                   # Claude Code edition (parallel tree)

Each skill is self-contained. Skills compose other skills to any depth via $skill-name invocations. The key distinction is between analysis skills (return structured findings without acting) and workflow skills (compose analysis skills and act on results).

For Codex skill conventions, see codex/SKILL-CONVENTIONS.md. General skill-authoring principles live in codex/skills/create-skill/references/, split by topic and indexed in that skill's SKILL.md.

Key Files

  • ~/.turbo/config.json — User-level configuration. Top-level oracle is shared. Per-edition state lives under codex.{excludeSkills, lastUpdateHead, configVersion, sharedClaudeAutoMemory}; the parallel claude.* object is present when the Claude edition is also installed.
  • ~/.turbo/repo/ — Local clone of the upstream turbo repo (skill source for install/update)
  • ~/.agents/skills/ — Installed Codex skills

When working inside codex/, also see codex/AGENTS.md for edition-specific rules.

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. 8d ago First seen · 33 lines · 449 tokens per session scan A c8d2491e0748

Subscribe to this mod's changes

turbo AGENTS.md is an instructions file published in the GitHub repository tobihagemann/turbo (402 stars, last pushed yesterday), licensed MIT. It adds 449 tokens to every session, about $0.0022 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 2026-08-30.

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