agent-codewalk: Instructions file for Codex

AGENTS.md

agent-codewalk AGENTS.md is an instructions file for Codex, OpenCode from andylin-hao/agent-codewalk. It costs 1,840 tokens per session, scanned A, original, MIT.

A project instruction file for Agent CodeWalk, a local VS Code or Cursor extension with a Rust companion that turns code changes or explanations into navigable editor walkthroughs.

In plain words
What is it for?
Use it when developing Agent CodeWalk and you need guidance on trustworthy diff coverage, safe source navigation, local data handling, integration boundaries, or English and Chinese behavior.
Why use it?
It gives coding agents the project’s product promises, repository map, shared contracts, and TypeScript standards before they change the code.

Instructions file for CodexOpenCode

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

This is andylin-hao/agent-codewalk's own configuration. It tells Codex and OpenCode how to work on agent-codewalk 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 agent-codewalk configures →

Reuse

Borrowing it

Nothing to install: this file belongs to andylin-hao/agent-codewalk. 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/andylin-hao/agent-codewalk/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/andylin-hao/agent-codewalk

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 agent-codewalk AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/andylin-hao/agent-codewalk/agents-md/github.svg)](https://agentmods.dev/instructions/andylin-hao/agent-codewalk/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/andylin-hao/agent-codewalk/agents-md"><img src="https://agentmods.dev/badge/instructions/andylin-hao/agent-codewalk/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.

agentmods 80×15 button for agent-codewalk AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/andylin-hao/agent-codewalk/agents-md"><img src="https://agentmods.dev/badge/instructions/andylin-hao/agent-codewalk/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,840 This file is loaded in full into every session.
When invoked 1,840 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 $0.01840 $0.01840
Opus 5.5 $0.00736 $0.00736
Sonnet 5.5 $0.00368 $0.00368
Haiku 4.5 $0.00184 $0.00184

Measured 2mo ago against content hash f43c9b824fd3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-codewalk 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 2mo 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 · 186 lines

How it starts

The opening of the file, as written. The whole thing — 186 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

This file is the operating contract for coding agents working in Agent CodeWalk. Read it before changing the repository. Human contributors should also read CONTRIBUTING.md.

Product intent

Agent CodeWalk is a local-first VS Code/Cursor extension paired with a Rust MCP companion. It turns an agent's code change or code explanation into a navigable walkthrough whose steps open and highlight real source blocks in the editor.

Protect these product promises in every change:

  • Walkthroughs are trustworthy: a normal change walkthrough covers every text diff hunk.
  • Navigation is safe: stale or ambiguous anchors never highlight a guessed location.
  • User code and explanations stay local unless a separately approved design says otherwise.
  • Integration setup is transparent, reversible, and limited to resources the extension owns.
  • The editor and companion agree on one versioned walkthrough contract.
  • User-facing behavior is understandable in both English and Simplified Chinese.

Do not add telemetry, network access, model API calls, or remote content loading without a separate user-approved design and an explicit privacy and security update.

Repository map

Area Responsibility
protocol/walkthrough-v1.schema.json Canonical persisted-session contract
protocol/fixtures/ Shared positive and negative protocol examples
crates/agent-codewalk-mcp/ Rust MCP transport, baseline capture, diff coverage, validation, and atomic publication
extension/src/ VS Code activation, storage, validation, navigation, highlighting, webview, localization, and integration setup
extension/resources/agent-codewalk/SKILL.md Portable instructions installed for supported agents
extension/package.json and package.nls*.json Marketplace metadata, commands, settings, keybindings, and localized manifest text
scripts/ Cross-project version synchronization and integration diagnostics
.github/workflows/ CI, pull-request policy, platform packaging, registry publishing, and GitHub releases
docs/ Architecture, troubleshooting, publishing, release acceptance, and roadmap

Read the full file on GitHub · 186 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. 2mo ago First seen · 186 lines · 1,840 tokens per session scan A f43c9b824fd3

Subscribe to this mod's changes

agent-codewalk AGENTS.md is an instructions file published in the GitHub repository andylin-hao/agent-codewalk (3 stars, last pushed 1mo ago), licensed MIT. It adds 1,840 tokens to every session, about $0.0074 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.

Related

Other instructions, from other repositories

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).

microsoft/vscode · 9,715 tokens

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.

vercel/next.js · 7,461 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).

microsoft/vscode · 5,262 tokens

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.

langchain-ai/langchain · 4,680 tokens

vscode copilot-instructions.md

Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).

microsoft/vscode · 2,750 tokens

deno copilot-instructions.md

Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.

denoland/deno · 3,077 tokens