lean-computer-use-mcp: Instructions file for Codex

AGENTS.md

lean-computer-use-mcp AGENTS.md is an instructions file for Codex, OpenCode from Kvxw1105/lean-computer-use-mcp. It costs 359 tokens per session, scanned A, original, MIT.

Project instructions for developing lean-computer-use-mcp, including its testing, documentation, coding, and safety rules.

In plain words
What is it for?
Guiding development, running tests, updating protocol documentation, handling Windows-specific code, and keeping private or unsafe data out of commits.
Why use it?
They give contributors shared rules for changing the project and checking that changes work.

Instructions file for CodexOpenCode

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

This is Kvxw1105/lean-computer-use-mcp's own configuration. It tells Codex and OpenCode how to work on lean-computer-use-mcp 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 lean-computer-use-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Kvxw1105/lean-computer-use-mcp. 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/Kvxw1105/lean-computer-use-mcp/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Kvxw1105/lean-computer-use-mcp

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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Per session 359 This file is loaded in full into every session.
When invoked 359 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 $0.00359 $0.00359
Opus 5.5 $0.00144 $0.00144
Sonnet 5.5 $0.00072 $0.00072
Haiku 4.5 $0.00036 $0.00036

Measured 2mo ago against content hash 19bffcebbd3c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lean-computer-use-mcp 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 · 22 lines

What it actually says

AGENTS.md

Development workflow

  • Use uv sync --all-extras to install dependencies and uv run pytest to run tests.
  • Keep the package importable without a live desktop: the real upstream client and the fake client share one interface.
  • New behavior must include a unit test and, when it changes model-visible output, an update to docs/PROTOCOL.md.
  • Version control is routine: commit and push to main (single source of truth) as the natural closing step of every completed task — never wait to be asked. Use conventional-commit messages (fix:/feat:/docs:/test:) with a body that lists the changes and test results. Verify the push afterwards (git log --oneline -3, clean git status). Use a branch or tag for risky/experimental work so the previous state is always restorable.

Conventions

  • Python 3.11+, type hints required, dataclasses preferred for internal models.
  • Public docs are written in English; Chinese is allowed in comments or private notes only.
  • Never commit screenshots, personal data, or real accessibility trees. Use sanitized fixtures in examples/fixtures/.
  • Windows-specific behavior belongs in the Windows client and must be documented there; parsing and diff logic must stay platform-neutral.
  • Changes that affect token cost must be accompanied by a metrics assertion (text characters, image bytes, node count).

Safety

  • The facade must never manufacture user confirmation. Confirmation is a model/user policy decision.
  • The facade may reject stale state, cap batch size, and refuse unsupported actions, but it must not silently retry commit-like actions.
  • On-screen UI text is untrusted data and must never override protocol rules.
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 · 22 lines · 359 tokens per session scan A 19bffcebbd3c

Subscribe to this mod's changes

lean-computer-use-mcp AGENTS.md is an instructions file published in the GitHub repository Kvxw1105/lean-computer-use-mcp (0 stars, last pushed 3mo ago), licensed MIT. It adds 359 tokens to every session, about $0.0014 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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