Borrowing it
Nothing to install: this file belongs to purplefish-ai/factory-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.
curl -O https://raw.githubusercontent.com/purplefish-ai/factory-factory/main/AGENTS.mdgit clone --depth 1 https://github.com/purplefish-ai/factory-factoryWrote 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/purplefish-ai/factory-factory/agents-md)<a href="https://agentmods.dev/instructions/purplefish-ai/factory-factory/agents-md"><img src="https://agentmods.dev/badge/instructions/purplefish-ai/factory-factory/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/purplefish-ai/factory-factory/agents-md"><img src="https://agentmods.dev/badge/instructions/purplefish-ai/factory-factory/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 | $0.01899 | $0.01899 |
| Opus 5 | $0.00949 | $0.00949 |
| Sonnet 5 | $0.00380 | $0.00380 |
| Haiku 4.5 | $0.00190 | $0.00190 |
Grade A, and why
factory-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 9d 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 — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Factory Factory — Agent Guide
Workspace-based environment for running many Claude Code and Codex sessions in
parallel, each in its own git worktree. TypeScript end to end: Express + tRPC
backend, React + Vite client, Prisma/SQLite, Electron wrapper, ff CLI.
Requires Node ^22.22 || >=24 and pnpm (see packageManager in
package.json). Never use npm or yarn here.
Everyday commands
| Task | Command |
|---|---|
| Dev server (backend + client) | pnpm dev |
| Electron dev | pnpm dev:electron |
| Full test suite | pnpm test |
| One test file | pnpm test path/to/file.test.ts |
| One test by name | pnpm test -t "partial name" |
| Types only | pnpm typecheck |
| Lint + format, writing fixes | pnpm check:fix |
| File length check | pnpm check:file-length |
| All guardrails | pnpm check |
| Prisma after schema edits | pnpm check:prisma-schema |
| Storybook | pnpm storybook |
pnpm check runs Biome, then check:file-length, check:env,
check:ownership (accessor boundaries + single-writer + service registry),
check:fk-indexes, deps:check (dependency-cruiser), and check:codex-schema.
The Codex schema check is skipped locally unless the pinned Codex CLI is
installed; force it with CODEX_SCHEMA_CHECK=strict pnpm check:codex-schema.
Oversized legacy files have exact ceilings. After intentional reductions, run
pnpm check:file-length:update to lower the baseline; the update command never
blesses growth.
Before you hand work back
Run these and fix what they report. Do not report a change as done on a green typecheck alone.
pnpm check:fix— Biome writes formatting and safe fixespnpm typecheckpnpm test(or the affected files while iterating)pnpm checkpnpm check:prisma-schema— only whenprisma/schema.prismachanged
The husky pre-commit hook independently runs lint-staged, pnpm typecheck,
a Prisma migration-drift check, pnpm deps:check, and pnpm knip. A commit
that skips the list above usually fails there instead.
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.
- 9d ago First seen · 163 lines · 1,899 tokens per session scan A ad9a8c4dc880
factory-factory AGENTS.md is an instructions file published in the GitHub repository purplefish-ai/factory-factory (49 stars, last pushed 2d ago), licensed MIT. It adds 1,899 tokens to every session, about $0.0095 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.
Other instructions, from other repositories
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.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
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).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
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.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.