agentype: Instructions file for Codex

AGENTS.md

agentype AGENTS.md is an instructions file for Codex, OpenCode from cyzlmh/agentype. It costs 680 tokens per session, scanned A, original, MIT.

Project instructions for a Python command-line package named Agentype. The package collects information from several coding agents, analyses it, and chooses an archetype, or broad usage category.

In plain words
What is it for?
Guiding work on data collection, agent-specific adapters, analysis, command-line usage, builds, and tests.
Why use it?
They give contributors one place for the project layout, development commands, coding conventions, and testing rules.

Instructions file for CodexOpenCode

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

This is cyzlmh/agentype's own configuration. It tells Codex and OpenCode how to work on agentype 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 agentype configures →

Reuse

Borrowing it

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

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 agentype AGENTS.md

README.md
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Your own site
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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 agentype AGENTS.md

Your own site · 80×15
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Per session 680 This file is loaded in full into every session.
When invoked 680 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 $0.00680 $0.00680
Opus 5.5 $0.00272 $0.00272
Sonnet 5.5 $0.00136 $0.00136
Haiku 4.5 $0.00068 $0.00068

Measured 2mo ago against content hash ba298012e6c2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agentype 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 · 47 lines

How it starts

The opening of the file, as written. The whole thing — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

Project Structure & Module Organization

Agentype is a Python CLI package under src/agentype/. The command entry point is src/agentype/__init__.py, wired through pyproject.toml as agentype = "agentype:main". Data collection lives in collector.py; per-agent adapters live in src/agentype/sources/ for Claude Code, Codex, OpenCode, pi-agent, Gemini CLI, OpenClaw, Nanobot, and configured Nanobot-compatible roots. Statistics, domain scoring, and archetype selection live in analysis.py.

Project documentation is in README.md, SKILL.md, and RELEASE.md. ROADMAP.md is a local planning file and is intentionally ignored. Tests are in tests/. Runtime artifacts are written to output/ and are intentionally ignored.

Build, Test, and Development Commands

Use uv for dependency management and command execution.

  • uv sync installs dependencies from uv.lock.
  • uv run pytest runs the parser and token usage test suite.
  • uv run agentype prints the end-user usage overview and archetype.
  • uv run agentype -v adds intermediate statistics, domain evidence, and data confidence tables.
  • uv run agentype --json-out writes the full analysis to output/agentype.json.
  • uv build builds the package using uv_build.

If you add developer tools such as ruff or mypy, declare them in pyproject.toml and run them through uv run.

Coding Style & Naming Conventions

Write idiomatic Python 3.12 with 4-space indentation and type hints for public functions or non-obvious data shapes. Use snake_case for functions, variables, and modules; use PascalCase for dataclasses such as SkillInfo, SessionEvent, and TokenUsage.

Keep modules focused on their existing responsibilities. Prefer small functions over new abstractions unless the abstraction removes repeated logic. Match the current style: standard-library imports first, third-party imports next, then local imports.

Testing Guidelines

Use pytest and place test files under tests/ with names like test_sources.py, test_token_usage.py, or test_analysis.py. Prefer fixture files or small inline JSON/SQLite samples over reading real local agent history. Focus on deterministic logic: transcript parsing, token usage summarization, statistics, domain scoring, and archetype selection. Avoid tests that require live LLM calls; mock agentype.llm.chat instead.

Read the full file on GitHub · 47 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 · 47 lines · 680 tokens per session scan A ba298012e6c2

Subscribe to this mod's changes

agentype AGENTS.md is an instructions file published in the GitHub repository cyzlmh/agentype (2 stars, last pushed 6mo ago), licensed MIT. It adds 680 tokens to every session, about $0.0027 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.

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