mcp-toolkit: Instructions file for Codex

AGENTS.md

mcp-toolkit AGENTS.md is an instructions file for Codex, OpenCode from YoshiLoL0526/mcp-toolkit. It costs 636 tokens per session, scanned A, original, no licence file.

Repository instructions for the YoshiLoL0526/mcp-toolkit project, including its structure, build and test commands, coding style, and testing guidelines.

In plain words
What is it for?
Working on, building, testing, and reviewing the mcp-toolkit repository.
Why use it?
They give a coding agent the project-specific rules it needs to make changes consistently.

Instructions file for CodexOpenCode

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

This is YoshiLoL0526/mcp-toolkit's own configuration. It tells Codex and OpenCode how to work on mcp-toolkit 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 mcp-toolkit configures →

Reuse

Borrowing it

Nothing to install: this file belongs to YoshiLoL0526/mcp-toolkit. 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/YoshiLoL0526/mcp-toolkit/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/YoshiLoL0526/mcp-toolkit

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 mcp-toolkit AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/yoshilol0526/mcp-toolkit/agents-md/github.svg)](https://agentmods.dev/instructions/yoshilol0526/mcp-toolkit/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/yoshilol0526/mcp-toolkit/agents-md"><img src="https://agentmods.dev/badge/instructions/yoshilol0526/mcp-toolkit/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 mcp-toolkit AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/yoshilol0526/mcp-toolkit/agents-md"><img src="https://agentmods.dev/badge/instructions/yoshilol0526/mcp-toolkit/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 636 This file is loaded in full into every session.
When invoked 636 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 unknown 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 $0.00636 $0.00636
Opus 5.5 $0.00254 $0.00254
Sonnet 5.5 $0.00127 $0.00127
Haiku 4.5 $0.00064 $0.00064

Measured 2mo ago against content hash 25dbf5b9b9b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-toolkit 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 · 35 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 · 35 lines · 636 tokens per session scan A 25dbf5b9b9b9

Subscribe to this mod's changes

mcp-toolkit AGENTS.md is an instructions file published in the GitHub repository YoshiLoL0526/mcp-toolkit (0 stars, last pushed 6mo ago), with no licence file. It adds 636 tokens to every session, about $0.0025 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.

Related

mcp-toolkit AGENTS.md compared with instructions from other repositories

mcp-toolkit AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
mcp-toolkit AGENTS.mdYoshiLoL0526/mcp-toolkitInstructions file06mo agononeA636Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,649GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA2,022GitHub Copilot