agentmods.dev

AI-MarkDone: Instructions file for Codex

AGENTS.md

AI-MarkDone AGENTS.md is an instructions file for Codex, OpenCode from zhaoliangbin42/AI-MarkDone. It costs 1,425 tokens per session, scanned A, original, MIT.

Repository instructions for AI-MarkDone, a browser extension built with TypeScript and Vite for Chrome and Firefox. They describe the project facts, reading order, commands, and rules developers must follow.

In plain words
What is it for?
Use them when finding the right project documentation, installing dependencies, running smoke or core tests, building the extension, or changing its browser and user-interface code.
Why use it?
They give coding agents a shared reference for how the project is organised and verified, reducing guesswork and inconsistent changes.

Instructions file for CodexOpenCode

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

This is zhaoliangbin42/AI-MarkDone's own configuration. It tells Codex and OpenCode how to work on AI-MarkDone 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 AI-MarkDone configures →

not rated 208repo changed 1mo ago A scan 1,425 tokens original MIT
View source ↗ zhaoliangbin42/AI-MarkDone chromewebstore.google.com
Reuse

Borrowing it

Nothing to install: this file belongs to zhaoliangbin42/AI-MarkDone. 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/zhaoliangbin42/AI-MarkDone/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/zhaoliangbin42/AI-MarkDone

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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<a href="https://agentmods.dev/instructions/zhaoliangbin42/ai-markdone/agents-md"><img src="https://agentmods.dev/badge/instructions/zhaoliangbin42/ai-markdone/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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/zhaoliangbin42/ai-markdone/agents-md"><img src="https://agentmods.dev/badge/instructions/zhaoliangbin42/ai-markdone/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,425 This file is loaded in full into every session.
When invoked 1,425 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 $0.01425 $0.01425
Opus 5.5 $0.00570 $0.00570
Sonnet 5.5 $0.00285 $0.00285
Haiku 4.5 $0.00143 $0.00143

Measured 1mo ago against content hash b63fd8744a95, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

AI-MarkDone 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 · 133 lines

How it starts

The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI-MarkDone Engineering Guide

This repository uses a Codex-first engineering guide for day-to-day development. Keep this file short, stable, and focused on entrypoints.

Project Facts

Item Value
Product AI-MarkDone
Product platform ChatGPT only; see the 2026-09-11 scope decision in docs/FEATURES.md
Type Browser extension
Targets Chrome MV3, Firefox MV2
Runtime surfaces content runtime, background runtime, extension UI
Stack TypeScript, Vite, Shadow DOM
Core constraints platform adapters, tokenized UI, dual-browser build parity

Read Order

  1. This file for repository-wide expectations.
  2. .codex/rules/* for cross-cutting engineering rules.
  3. .codex/guides/* for task-oriented guidance.
  4. docs/README.md for the long-lived system of record.
  5. The specific contract or architecture document for the area you are changing.

Common Commands

  • npm install
  • npm run test:smoke
  • npm run test:core
  • npm run build

Non-Negotiables

  • Search before editing. Do not assume files, symbols, selectors, or contracts exist.
  • Do not use destructive rollback commands such as git checkout --, git reset --hard, or bulk sed replacements.
  • UI changes must use the established --aimd-* token system. Do not hardcode colors, spacing, radius, or z-index values in shipped UI.
  • Do not use !important outside explicit print-only rules.
  • Keep architecture changes aligned with the authoritative docs in docs/.
  • New feature design, implementation, settings, and acceptance target ChatGPT only (including its in-page and detached Reader). Existing other-platform code is legacy, not a requirement for feature parity; Chrome/Firefox build parity still applies.
  • Any repo-tracked code change must be verified with npm run build before completion unless the user explicitly waives it.

Required Engineering Behaviors

  • Treat user corrections as process failures, not one-off mistakes.
    • State what was wrong.
    • Adjust the plan or rule you are following.
    • Do not repeat the same mistake silently.
  • For bug fixes, reproduce the bug with a failing test before changing implementation whenever the bug is testable in this repository.
    • If it is not realistically testable, state why and add the closest practical regression check.
    • For overlay, modal, popover, panel, or shared-primitive regressions, do not stop at direct surface tests. Also add or update at least one test that enters through the real user-facing trigger path.
  • Before writing code for a materially ambiguous request, ask clarifying questions instead of guessing.
  • After any code change, explicitly list important edge cases and suggest the tests that should cover them.
  • Do not claim success from reasoning alone.
    • Use commands, tests, or build output as evidence.
  • Prefer the smallest safe change that satisfies the request and preserves current contracts.

Read the full file on GitHub · 133 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 Changed · +2 lines · +74 tokens per session b63fd8744a95
  2. 2mo ago First seen · 131 lines · 1,351 tokens per session scan A 27154df69b86

Subscribe to this mod's changes

AI-MarkDone AGENTS.md is an instructions file published in the GitHub repository zhaoliangbin42/AI-MarkDone (208 stars, last pushed 8d ago), licensed MIT. It adds 1,425 tokens to every session, about $0.0057 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.

chatgptchrome-extensionclaudedeepseekgeminimarkdown
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