todox: Instructions file for Codex

AGENTS.md

todox AGENTS.md is an instructions file for Codex, OpenCode from beydemirfurkan/todox. It costs 3,983 tokens per session, scanned A, original, MIT.

Repository instructions for Todox, a developer task log for recording decisions, dead ends and handoffs for coding agents.

In plain words
What is it for?
They guide agents when reading project documentation, editing shared rules, following sprint procedures and applying the three-strike rule.
Why use it?
They warn that this project uses changing Next.js APIs and require agents to follow mirrored rules and the repository's confusion-handling process.

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 beydemirfurkan/todox's own configuration. It tells Codex and OpenCode how to work on todox 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 todox configures →

Reuse

Borrowing it

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

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 todox AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/beydemirfurkan/todox/agents-md.svg)](https://agentmods.dev/instructions/beydemirfurkan/todox/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/beydemirfurkan/todox/agents-md"><img src="https://agentmods.dev/badge/instructions/beydemirfurkan/todox/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 3,983 This file is loaded in full into every session.
When invoked 3,983 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.03983 $0.03983
Opus 5 $0.01992 $0.01992
Sonnet 5 $0.00797 $0.00797
Haiku 4.5 $0.00398 $0.00398

Measured 2d ago against content hash b7d147944093, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

todox 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 2d 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 · 280 lines

How it starts

The opening of the file, as written. The whole thing — 280 lines — stays where its author put it; the contents beside it link to each section on GitHub.

This is NOT the Next.js you know

This version has breaking changes — APIs, conventions, and file structure may all differ from your training data. Read the relevant guide in node_modules/next/dist/docs/ (resolved from this file's directory; in monorepos the next package may not be visible from the repo root) before writing any code. Heed deprecation notices.

This block is written and re-added by next dev — verify at node_modules/next/dist/server/lib/generate-agent-files.js. Removing it from a diff only re-creates the uncommitted change; committing it with your work keeps the tree clean.

todox — agent rules

This file is read directly by Codex, Cursor, OpenCode and VS Code Copilot as plain markdown (Codex has no @import support — @AGENTS.md is a Claude Code extension). Claude Code reaches it through CLAUDE.md, which imports this file.

Two-source rule (also captured in the PR template and CONTRIBUTING.md): the "Domain rules" section below is mirrored verbatim in CONTRIBUTING.md under "The rules the codebase actually follows". A change to one is a change to the other; the duplication is intentional because Codex/Cursor will not follow a cross-file reference.

Sprint workflow

Think → Plan → Build → Review → Test → Ship → Reflect. No step is optional.

  • Think. "Is this the right problem?" What the user said and what they meant can differ. Surface assumptions before committing to them.
  • Plan. 2-3 alternatives. At minimum a minimal viable and an ideal architecture. Justify the recommendation; let the user pick.
  • Build. Small, atomic commits. One commit = one logical change.
  • Review. Read your own diff: scope creep, missing edge cases, silent failures, security. Walk the gstack-review checklist.
  • Test. Run the affected tests. Write a regression test for new code.
  • Ship. Open a PR; CI must be green. Verify production after merge.
  • Reflect. What went well, what did not. One or two sentences.

Read the full file on GitHub · 280 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. 2d ago Changed · +16 lines · +269 tokens per session b7d147944093
  2. 6d ago First seen · 264 lines · 3,714 tokens per session scan A 4a1d261d904d

Subscribe to this mod's changes

todox AGENTS.md is an instructions file published in the GitHub repository beydemirfurkan/todox (2 stars, last pushed yesterday), licensed MIT. It adds 3,983 tokens to every session, about $0.0199 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 2026-08-31.

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