yoloai: Instructions file for Codex

AGENTS.md

yoloai AGENTS.md is an instructions file for Codex, OpenCode from kstenerud/yoloai. It costs 3,522 tokens per session, scanned A, original, MIT.

Repository instructions for yoloAI, a Go program that runs coding agents in disposable sandboxes and applies their proposed file changes. They define project rules, documentation checks, deprecations, and the quality gate for changes.

In plain words
What is it for?
Use them when changing yoloAI, preparing a pull request, checking project documentation, or running its required quality checks.
Why use it?
They record the project's required process and compatibility rules, including checks for documentation that may have become outdated. This keeps changes aligned with the repository's own contract.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

Made for: Codex, OpenCode.

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Per session 3,522 This file is loaded in full into every session.
When invoked 3,522 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 $0.03522 $0.03522
Opus 5.5 $0.01409 $0.01409
Sonnet 5.5 $0.00704 $0.00704
Haiku 4.5 $0.00352 $0.00352

Measured 14d ago against content hash 8b2a33713c69, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

yoloai 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 14d 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 · 179 lines

How it starts

The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

yoloAI runs AI coding CLI agents inside disposable sandboxes (containers, Tart VMs, macOS Seatbelt) with a copy/diff/apply workflow. Go binary, no runtime deps beyond the backend. Public beta: breaking changes are allowed, but must be recorded — rule 1.

This is the contract for changing yoloAI, and the canonical instruction file for every agent working on it. CLAUDE.md imports it. Keep it short; detail lives behind the pointers.

Docs last swept: 2026-07-15 (D116, D124). Docs drift silently — nothing executes prose. If that date is more than ~3 months ago, say so, unprompted, before relying on a doc being right. Bump it when a sweep lands. Why this exists: general-principles.md §16.

Deprecations reviewed: 2026-07-17 (D127) — nothing due; next 2026-09-12. Compatibility code is invisible once written, so it is never retired. docs/contributors/deprecations.md registers each with the date it was incurred and a per-entry due date. If today is past the date above, read the register and say so, unprompted — the owner decides what retires, but only if asked. This is a nag, not a gate: nothing fails, ever. Bump the date when a review lands.

The marker is a claim, so treat it as one. When first written it named a sweep that had never opened architecture/, which at that moment documented a mode retired two releases earlier and a package that has never existed — the drift-detector's own first reading was wrong. D124 made it true and gated the names, so architecture/ now fails loudly rather than drifting quietly. No other tier has that backstop.

Where things are

Docs are organised by role. Pick your tier, then read that directory's README.md:

Tier Directory
Users — running yoloAI docs/
Integrators — embedding it as a library docs/integrators/
Contributors — changing it docs/contributors/

Two you will want by name: architecture/where-to-change.md maps a change onto the files that make it. backend-idiosyncrasies.md catalogues backend behaviour that contradicts its own docs — read it before diagnosing any backend problem; add to it when you find more.

Read the full file on GitHub · 179 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. 14d ago Changed · -11 lines · -249 tokens per session 8b2a33713c69
  2. 1mo ago First seen · 190 lines · 3,771 tokens per session scan A ba253e03ff41

Subscribe to this mod's changes

yoloai AGENTS.md is an instructions file published in the GitHub repository kstenerud/yoloai (221 stars, last pushed 15d ago), licensed MIT. It adds 3,522 tokens to every session, about $0.0141 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 2026-08-30.

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