atlas: Instructions file for Codex

AGENTS.md

atlas AGENTS.md is an instructions file for Codex, OpenCode from Blazity/atlas. It costs 401 tokens per session, scanned A, original, MIT.

Project instructions for Atlas Core, a command-line toolkit that keeps an AI-assisted coding repository's notes, plans, decisions, and terminology organized.

In plain words
What is it for?
Use them when running Atlas checks, creating plans or architecture decisions, editing AI context files, or preparing commits.
Why use it?
They tell agents which local commands and vocabulary to use and help prevent outdated tools or inconsistent documentation from changing the project incorrectly.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

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

Reuse

Borrowing it

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

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.

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README.md
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Per session 401 This file is loaded in full into every session.
When invoked 401 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 $0.00401 $0.00401
Opus 5.5 $0.00160 $0.00160
Sonnet 5.5 $0.00080 $0.00080
Haiku 4.5 $0.00040 $0.00040

Measured 1mo ago against content hash 163293a7e028, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

atlas 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 · 27 lines

What it actually says

Atlas Core — Project AI Instructions

Atlas Core is the installable layer of Blazity's Atlas standard for AI-assisted engineering: the atlas init / atlas doctor CLI, the managed setup and review skills, and deterministic workspace scaffolding that keeps a repository's AI context (memory, vocabulary, plans, decisions, review artifacts) healthy and machine-checkable.

Operating Rules

  • Inside this repo ALWAYS run the local CLI: npm run atlas or node bin/atlas.js. Never run the published npx @blazity-atlas/core package against this worktree — the published doctor --fix would overwrite unreleased managed skill edits with the released versions (channel drift).
  • Run the full npm test before any commit.
  • Conventional commits matching the existing git log --oneline -15 style: type(scope): message, first line only.
  • English everywhere — code, comments, commits, docs.
  • Vocabulary lives in .ai/LANGUAGE.md; decisions live in .ai/decisions/adrs/.

Atlas Artifact Paths

.ai/config.json is the source of truth for AI artifact locations in this repository. Before writing plans, research, decisions, ADRs, results, memory, vocabulary, or skill outputs, resolve the destination through artifactRoot, paths, and pathAliases. If an imported skill, template, or instruction mentions a different path, map it through .ai/config.json before reading or writing files. Do not create new documentation roots unless .ai/config.json explicitly allows them.

Atlas Documentation Rules

Durable documentation records needs, decisions, and reasons — never individuals or internal process. Write "memory was needed to persist context across runs", not " wanted memory". Keep personal names, private schedules, internal-only references, and absolute local paths out of workspace artifacts.

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 First seen · 27 lines · 401 tokens per session scan A 163293a7e028

Subscribe to this mod's changes

atlas AGENTS.md is an instructions file published in the GitHub repository Blazity/atlas (26 stars, last pushed 3mo ago), licensed MIT. It adds 401 tokens to every session, about $0.0016 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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