mcp-inspector: Instructions file for Codex

AGENTS.md

mcp-inspector AGENTS.md is an instructions file for Codex, OpenCode from nette/mcp-inspector. It costs 1,952 tokens per session, scanned A, original, no licence file.

Repository instructions for mcp-inspector, a project for inspecting MCP tools. They cover the project overview, architecture, adding a toolkit, and protection rules.

In plain words
What is it for?
Understanding this repository, working with its architecture, adding toolkits, and following its protection guidance.
Why use it?
They give coding agents the project context and rules needed to inspect or extend it safely.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

Nothing to install: this file belongs to nette/mcp-inspector. 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/nette/mcp-inspector/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/nette/mcp-inspector

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-inspector AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/nette/mcp-inspector/agents-md"><img src="https://agentmods.dev/badge/instructions/nette/mcp-inspector/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,952 This file is loaded in full into every session.
When invoked 1,952 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 $0.01952 $0.01952
Opus 5.5 $0.00781 $0.00781
Sonnet 5.5 $0.00390 $0.00390
Haiku 4.5 $0.00195 $0.00195

Measured 8d ago against content hash 2f27605f5352, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-inspector 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 8d 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 · 48 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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. 8d ago Changed · +2 lines · +478 tokens per session 2f27605f5352
  2. 1mo ago First seen · 46 lines · 1,474 tokens per session scan A ea3df75e1d94

Subscribe to this mod's changes

mcp-inspector AGENTS.md is an instructions file published in the GitHub repository nette/mcp-inspector (5 stars, last pushed 9d ago), with no licence file. It adds 1,952 tokens to every session, about $0.0078 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

Other instructions, from other repositories