open-agent-ready-typescript: Instructions file for Claude Code

AGENTS.md

open-agent-ready-typescript AGENTS.md is an instructions file for Claude Code, Codex, OpenCode from lucasgodt/open-agent-ready-typescript. It costs 1,946 tokens per session, scanned A, original, MIT.

Repository instructions for AI coding agents working on a small invoicing API, including its commands, architecture, tests, and required workflow.

In plain words
What is it for?
They guide work such as creating invoices, adding line items, sending invoices, recording payments, and running type checks, linting, dependency checks, tests, and coverage checks.
Why use it?
They give agents the project rules and checks needed to make changes that fit the codebase and pass its automated safeguards.

Instructions file for Claude CodeCodexOpenCode

Written for Claude Code and Codex and OpenCode: PreToolUse hook event, but also the file is AGENTS.md. Also seen: reads .claude/ paths; mentions Claude Code; mentions AGENTS.md.

This is lucasgodt/open-agent-ready-typescript's own configuration. It tells Claude Code, Codex and OpenCode how to work on open-agent-ready-typescript 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 open-agent-ready-typescript configures →

Reuse

Borrowing it

Nothing to install: this file belongs to lucasgodt/open-agent-ready-typescript. 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/lucasgodt/open-agent-ready-typescript/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/lucasgodt/open-agent-ready-typescript

Made for: Claude Code, 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 open-agent-ready-typescript AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/lucasgodt/open-agent-ready-typescript/agents-md.svg)](https://agentmods.dev/instructions/lucasgodt/open-agent-ready-typescript/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/lucasgodt/open-agent-ready-typescript/agents-md"><img src="https://agentmods.dev/badge/instructions/lucasgodt/open-agent-ready-typescript/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,946 This file is loaded in full into every session.
When invoked 1,946 The same file — it is already loaded in full.
Security scan A 1 finding. 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 $0.01946 $0.01946
Opus 5 $0.00973 $0.00973
Sonnet 5 $0.00389 $0.00389
Haiku 4.5 $0.00195 $0.00195

Measured 6d ago against content hash d3d595eec2d5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

open-agent-ready-typescript AGENTS.md scanned grade A with 1 finding 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 6d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sL $BASE/SKILL.md -o ~/.claude/skills/scaffold-agent-ready/SKILL.md
AGENTS.md · 159 lines

How it starts

The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Instructions for AI coding agents working in this repository. Read this before planning any change. Humans: see README.md for the why; this file is the how.

What this repository is

A small invoicing API (create invoice → add line items → send → record payments) built as a reference for agent-native engineering: the architecture, tests and tooling are designed so that an AI agent produces good code here mechanically, not by being asked nicely. Every rule in this file that matters is also enforced by a machine (linter, dependency rules, hooks, CI). If you find a rule that is prose-only, treat it as equally binding.

Commands

npm install            # install (Node >= 22)
npm run dev            # run the API locally on :3000
npm run typecheck      # tsc --noEmit (strict mode)
npm run lint           # eslint
npm run deps           # dependency-cruiser — THE ARCHITECTURE, ENFORCED
npm run test           # vitest, all suites
npm run test:coverage  # tests + coverage thresholds (90% lines)
npm run mutation       # Stryker mutation testing (slow; CI runs it)
npm run verify         # typecheck + lint + deps + test — must pass before any commit

Run npm run verify before every commit. A hook blocks commits when it fails.

Architecture map

src/domain/          Entities, value objects, domain errors.
                     IMPORTS NOTHING outside src/domain. Not even node builtins.
src/application/     Use cases + ports (interfaces). Imports domain only.
                     One use case = one file = one spec = one test block.
src/infrastructure/  Adapters: HTTP (Hono+Zod) and persistence.
                     Implements ports. May import domain, application, libraries.
src/main/            Composition root. The ONLY place adapters meet ports.
specs/               One markdown spec per use case. The contract.
tests/               unit/ (domain + use cases via fakes), integration/ (HTTP+files).
docs/adr/            Architecture decision records. Read before disagreeing
                     with a design choice — it may already be decided, with reasons.

Read the full file on GitHub · 159 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. 6d ago First seen · 159 lines · 1,946 tokens per session scan A d3d595eec2d5

Subscribe to this mod's changes

open-agent-ready-typescript AGENTS.md is an instructions file published in the GitHub repository lucasgodt/open-agent-ready-typescript (5 stars, last pushed 1mo ago), licensed MIT. It adds 1,946 tokens to every session, about $0.0097 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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