FounderOS-DEMO: Instructions file for Codex

AGENTS.md

FounderOS-DEMO AGENTS.md is an instructions file for Codex, OpenCode from Bennettxai/FounderOS-DEMO. It costs 518 tokens per session, scanned C, original, MIT.

A set of project rules for coding agents working on FounderOS, including how to handle secrets, branches, tests, databases and shared development servers.

In plain words
What is it for?
Use it when making code changes in FounderOS, especially when reading project documentation, writing tests first, checking types, accessing data or committing work.
Why use it?
It gives agents the project’s safety rules and working conventions in one place, reducing accidental data leaks, broken sessions and untested changes.

Instructions file for CodexOpenCode

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

This is Bennettxai/FounderOS-DEMO's own configuration. It tells Codex and OpenCode how to work on FounderOS-DEMO 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 FounderOS-DEMO configures →

Reuse

Borrowing it

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

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 FounderOS-DEMO AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/bennettxai/founderos-demo/agents-md.svg)](https://agentmods.dev/instructions/bennettxai/founderos-demo/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/bennettxai/founderos-demo/agents-md"><img src="https://agentmods.dev/badge/instructions/bennettxai/founderos-demo/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 518 This file is loaded in full into every session.
When invoked 518 The same file — it is already loaded in full.
Security scan C 1 finding. 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 $0.00518 $0.00518
Opus 5 $0.00259 $0.00259
Sonnet 5 $0.00104 $0.00104
Haiku 4.5 $0.00052 $0.00052

Measured 8d ago against content hash 4c30209fdda3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade C, and why

FounderOS-DEMO AGENTS.md scanned grade C with 1 finding 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

`rm -rf .next`, restart).
AGENTS.md · 41 lines

What it actually says

FOUNDER OS — agent rules

Full project docs live in CLAUDE.md (same directory) — read it first. This file exists so non-Claude agents (Codex, etc.) get the same house rules.

Non-negotiables

  • Never commit or copy secrets. Credentials live in .env.local (gitignored) and Alex's canonical files; lib/creds.ts resolves them. Never copy keys from ~/knowledge/.env.agents into the repo.
  • Never push to any remote or touch main without Alex's explicit yes. Commit locally on founder-os, small checkpoints, often.
  • Don't kill the dev server on 4100 or 4101 — other sessions use them. If your edit crashes the dev server's hot reload, fix it fast: a crash loop corrupts .next and breaks every session's page chunks (kill the port, rm -rf .next, restart).
  • /org markup is frozen — do not restructure it.
  • No em/en dashes in anything written for Alex.

How to work

  • TDD: failing test first (tests/, one file per module, FOUNDER_OS_DB=:memory:), then implement. npm test and npm run typecheck must be green before claiming done.
  • Everything reads through the repo layer: lib/db.ts repos + lib/schemas.ts Zod validation + lib/seed.ts seeds. Never query SQLite from a page/route.
  • Theme via CSS vars on data-theme (five themes in app/globals.css); Tailwind os.* tokens map to them. Keep tailwind.config.ts and globals.css in sync.
  • Commands: npm run dev (port 4100) · npm test · npm run typecheck · npm run seed · npm run brain:docs.

Multi-agent etiquette

Multiple agent sessions (Claude, Codex) work this repo concurrently:

  • git log --oneline to see where others are; commit small and often.
  • Coordinate by surface: don't edit a page/component another session has uncommitted changes in (git status shows them).
  • The Playwright browser is shared across sessions — expect interference.
  • Leave handoff notes in docs/ if you stop mid-feature.
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 · 41 lines · 518 tokens per session scan C 4c30209fdda3

Subscribe to this mod's changes

FounderOS-DEMO AGENTS.md is an instructions file published in the GitHub repository Bennettxai/FounderOS-DEMO (784 stars, last pushed 13d ago), licensed MIT. It adds 518 tokens to every session, about $0.0026 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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