gastown-gui: Instructions file for Codex

AGENTS.md

gastown-gui AGENTS.md is an instructions file for Codex, OpenCode from web3dev1337/gastown-gui. It costs 102 tokens per session, scanned A, original, MIT.

Project instructions for an application, including rules about reading its documentation and keeping server code split into focused modules.

In plain words
What is it for?
Guiding changes to the gastown-gui project, especially around reading CLAUDE.md and avoiding oversized server files.
Why use it?
They help a coding agent follow the project's existing expectations before changing code.

Instructions file for CodexOpenCode

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

This is web3dev1337/gastown-gui's own configuration. It tells Codex and OpenCode how to work on gastown-gui 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 gastown-gui configures →

Reuse

Borrowing it

Nothing to install: this file belongs to web3dev1337/gastown-gui. 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/web3dev1337/gastown-gui/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/web3dev1337/gastown-gui

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 gastown-gui AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/web3dev1337/gastown-gui/agents-md/github.svg)](https://agentmods.dev/instructions/web3dev1337/gastown-gui/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/web3dev1337/gastown-gui/agents-md"><img src="https://agentmods.dev/badge/instructions/web3dev1337/gastown-gui/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 gastown-gui AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/web3dev1337/gastown-gui/agents-md"><img src="https://agentmods.dev/badge/instructions/web3dev1337/gastown-gui/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 102 This file is loaded in full into every session.
When invoked 102 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 $0.00102 $0.00102
Opus 5.5 $0.00041 $0.00041
Sonnet 5.5 $0.00020 $0.00020
Haiku 4.5 $0.00010 $0.00010

Measured 1mo ago against content hash 050536e71442, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

gastown-gui 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 · 12 lines

What it actually says

AGENTS.md

READ THE ENTIRE CLAUDE.md FILE BEFORE MAKING ANY CHANGES.

This file exists for AI tools that don't automatically read CLAUDE.md (Cursor, Aider, etc.).

All project documentation, architecture, commands, and patterns are in CLAUDE.md.

Additional Rule

  • No god files/classes. If logic grows in server.js (or any large file), extract it into dedicated modules under server/ by responsibility.
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 First seen · 12 lines · 102 tokens per session scan A 050536e71442

Subscribe to this mod's changes

gastown-gui AGENTS.md is an instructions file published in the GitHub repository web3dev1337/gastown-gui (95 stars, last pushed 1mo ago), licensed MIT. It adds 102 tokens to every session, about $0.0004 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.

Related

Other instructions, from other repositories