membank: Instructions file for Codex

AGENTS.md

membank AGENTS.md is an instructions file for Codex, OpenCode from draekien-industries/membank. It costs 1,033 tokens per session, scanned A, original, MIT.

An AGENTS.md instruction file containing project-specific context, commands, architecture notes, and rules for coding agents. It describes a TypeScript and JavaScript project using pnpm and Vitest.

In plain words
What is it for?
Use it to guide installation, testing, type checking, code cleanup, and inspection of project boundaries and dependencies.
Why use it?
It gives an agent the repository details and checks it should follow before changing or deleting code.

Instructions file for CodexOpenCode

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

This is draekien-industries/membank's own configuration. It tells Codex and OpenCode how to work on membank 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 membank configures →

Reuse

Borrowing it

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

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 membank AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/draekien-industries/membank/agents-md"><img src="https://agentmods.dev/badge/instructions/draekien-industries/membank/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,033 This file is loaded in full into every session.
When invoked 1,033 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 $0.01033 $0.01033
Opus 5 $0.00517 $0.00517
Sonnet 5 $0.00207 $0.00207
Haiku 4.5 $0.00103 $0.00103

Measured yesterday against content hash fba4b946f2c3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

membank 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 yesterday.

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 · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

This file gives coding agents project-specific context. Keep it short and update it when workflows change.

Project Overview

  • Primary app or package:
  • Main entry points:
  • Important directories:

Architecture Notes

  • Module boundaries: pnpm workspaces (packages/, tools/)
  • Generated or vendored code:
  • Sensitive areas:

Commands

  • Install: pnpm install
  • Build:
  • Test: Vitest
  • Typecheck or lint: tsc --noEmit

Fallow

  • Use fallow audit --format json --quiet before committing AI-generated changes.
  • Use fallow dead-code --format json --quiet, fallow dupes --format json --quiet, and fallow health --format json --quiet for targeted checks.
  • Use fallow list --entry-points --format json --quiet and fallow list --boundaries --format json --quiet to inspect project shape.
When the agent is about to... Run
delete an "unused" export or file fallow dead-code --trace <file>:<export>
prove a TypeScript symbol's exact consumers before refactoring fallow dead-code --type-aware --symbol-impact <file>:<export-or-class.method>
delete an "unused" dependency fallow dead-code --trace-dependency <name>
commit or open a PR fallow audit --base <ref>
prioritize refactoring fallow health --hotspots --targets
ask who owns code fallow health --ownership
check untested-but-reachable code fallow health --coverage-gaps
consolidate duplication fallow dupes --trace dup:<fingerprint>
find feature flags fallow flags
check which architecture rules apply to a file before changing it fallow guard <files>
surface security candidates fallow security
understand a finding fallow explain <issue-type>
scope a monorepo --workspace <glob> / --changed-workspaces <ref> (global flags, prefix any command)

Read the full file on GitHub · 85 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. yesterday First seen · 85 lines · 1,033 tokens per session scan A fba4b946f2c3

Subscribe to this mod's changes

membank AGENTS.md is an instructions file published in the GitHub repository draekien-industries/membank (2 stars, last pushed yesterday), licensed MIT. It adds 1,033 tokens to every session, about $0.0052 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 2026-09-08.

Related

Other instructions, from other repositories

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 · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

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 · 6,785 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, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 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 · 4,469 tokens

deepseek-harness AGENTS.md

AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.

deepseek-ai/deepseek-harness · 3,737 tokens