intern-mcp: Instructions file for Codex

AGENTS.md

intern-mcp AGENTS.md is an instructions file for Codex, OpenCode from ArchAstro/intern-mcp. It costs 178 tokens per session, scanned A, original, MIT.

Project-specific instructions for AI agents working on the ArchAstro/intern-mcp codebase. They describe the project scope, verification steps, and Git rules.

In plain words
What is it for?
Following repository instructions, deciding which files are in scope, running the expected verification, and handling Git work correctly.
Why use it?
They give an agent the local context and working boundaries it needs before changing code. This reduces avoidable mistakes and inconsistent checks.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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 intern-mcp AGENTS.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/archastro/intern-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/archastro/intern-mcp/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 intern-mcp AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/archastro/intern-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/archastro/intern-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 178 This file is loaded in full into every session.
When invoked 178 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 $0.00178 $0.00178
Opus 5.5 $0.00071 $0.00071
Sonnet 5.5 $0.00036 $0.00036
Haiku 4.5 $0.00018 $0.00018

Measured 2mo ago against content hash b4f4fbc63761, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

intern-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 · 25 lines

What it actually says

AGENTS.md

Scope

This repository owns the local TryIntern MCP package. TryIntern and Platform backend APIs remain in Firstlanding.

Verification

Run npm run check for source changes. Run npm run test:harnesses when changing packaging, the executable, or Codex/Claude installation guidance. When Firstlanding's runtime contract changes, run node scripts/runtime-contract.mjs sync <firstlanding-path>, verify it with npm run check:runtime-contract -- <firstlanding-path>, and update both repositories together.

The MCP uses stdout only for protocol frames. Diagnostics belong on stderr. Keep explicit stdin and signal shutdown so preview processes and snapshots are always cleaned up.

Git

Do not commit or push unless the user explicitly asks. Rebase feature branches against origin/main before updating a pull request.

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 · 25 lines · 178 tokens per session scan A b4f4fbc63761

Subscribe to this mod's changes

intern-mcp AGENTS.md is an instructions file published in the GitHub repository ArchAstro/intern-mcp (0 stars, last pushed 2mo ago), licensed MIT. It adds 178 tokens to every session, about $0.0007 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

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

intern-mcp AGENTS.md next to 6 instructions from other repositories
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intern-mcp AGENTS.mdArchAstro/intern-mcpInstructions file02mo agoMITA178Codex, OpenCode
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vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA2,022GitHub Copilot