software-factory: Instructions file for Codex

AGENTS.md

software-factory AGENTS.md is an instructions file for Codex, OpenCode from Kripu77/software-factory. It costs 1,052 tokens per session, scanned A, original, MIT.

Repository instructions for an AI coding agent working as one part of a software factory, a process that organizes development into defined work lanes. They explain which project documents and skills to read, and how to prepare, implement, review, test, and ship changes.

In plain words
What is it for?
Use them when changing code in the software-factory repository, especially for test-driven development, implementation, cleanup, diagrams, code reviews, issue planning, continuous-integration checks, or running application tests.
Why use it?
They reduce guesswork by giving the agent a fixed reading order, project vocabulary, and rules for branches, commits, pull requests, and development tasks.

Instructions file for CodexOpenCode

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

This is Kripu77/software-factory's own configuration. It tells Codex and OpenCode how to work on software-factory 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 software-factory configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Kripu77/software-factory. 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/Kripu77/software-factory/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Kripu77/software-factory

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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README.md
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Per session 1,052 This file is loaded in full into every session.
When invoked 1,052 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 $0.01052 $0.01052
Opus 5.5 $0.00421 $0.00421
Sonnet 5.5 $0.00210 $0.00210
Haiku 4.5 $0.00105 $0.00105

Measured 1mo ago against content hash b306f4c4abcf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

software-factory 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 · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Software factory

You are one lane in a factory. The runner (Grok, Claude Code, Codex, Cursor) does not change the rules.

Before you explore

Read, in order, whatever exists:

  1. CONTEXT-MAP.md at the workspace root
  2. This repo's CONTEXT.md
  3. ADRs
  4. docs/agents/ if present

Use glossary terms from CONTEXT.md. Do not invent synonyms. Missing CONTEXT.md: continue silently.

Skills

/tdd, /implement, /unslop for product code. /mermaid when writing a feature, bug, or docs PR. /code-review only when reviewing. /loop-on-ci only when watching PR checks. /to-tickets only when breaking work into GitHub issues. /qa only when testing a running app (smoke or browser). /run-smoke-tests and /browser-use are the QA skills.

Shipping

  • Before writing code, find a similar, recently-merged example in this repo (a file or PR doing the same kind of thing) and match its patterns. If none exists, say so in the PR description.
  • New branch off main. Do not wreck other local branches or worktrees.
  • Commit one complete thought at a time. The message names that thought. Keep the diff small. If the thought would be huge, split the ticket. No line-count cap.
  • PR title: Type/<issue.number>/<short description> where Type is Feat, Bug, Arch, Chore, Refactor, or General.
  • PR description: human, at most 3 sentences, then mermaid. Feature: before and after when a prior shape exists, after-only when net-new. Bug: before and after. Use short paragraphs with a blank line between them. A blank line before any list or fence. Cite the ticket as a markdown link. A line never starts with #n. Do not Closes until every slice has landed.
  • After-state mermaid also lands in the product repo docs tree in the same PR. Update the existing page for that subsystem. Do not add a new file per PR. If the bug revealed a missing architecture page, add that page and persist only the corrected after-state. README or QUICKSTART only when the diagram is user-facing: first-run, signal path, or a flow a human runs. Internals stay in docs. Bug before-state stays on the PR.
  • New issue comments a lane writes use the same spacing. Ledger mem-write comments stay one sentence, a blank line, then a markdown PR link. Do not rewrite old PRs.
  • Never merge. Never gh pr merge. Never --no-verify.
  • Never read .env or .env.local. Never store .env contents in factory memory.
  • Never attribute factory code to other products.
  • Only the ticket or PR you were given. No sweeping other people's PRs.

Read the full file on GitHub · 65 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 First seen · 65 lines · 1,052 tokens per session scan A b306f4c4abcf

Subscribe to this mod's changes

software-factory AGENTS.md is an instructions file published in the GitHub repository Kripu77/software-factory (7 stars, last pushed 1mo ago), licensed MIT. It adds 1,052 tokens to every session, about $0.0042 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.

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