origin-mcp: Instructions file for Codex

AGENTS.md

origin-mcp AGENTS.md is an instructions file for Codex, OpenCode from Ge-Shun/origin-mcp. It costs 210 tokens per session, scanned A, original, MIT.

Project instructions for developing and debugging the Origin Start/Stop App and its bridge code.

In plain words
What is it for?
Use them when changing the app launcher, installer, build scripts, or Origin bridge code to rebuild, reinstall, restart, and verify the live connection.
Why use it?
They prevent tests from using an outdated installed app after source or launcher changes, which could hide real problems.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/ge-shun/origin-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/ge-shun/origin-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 210 This file is loaded in full into every session.
When invoked 210 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 $0.00210 $0.00210
Opus 5.5 $0.00084 $0.00084
Sonnet 5.5 $0.00042 $0.00042
Haiku 4.5 $0.00021 $0.00021

Measured 2mo ago against content hash 37fba3f1fdf0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

origin-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 · 23 lines

What it actually says

Development and debugging rules

Origin Start/Stop App

  • Treat the installed Origin Start/Stop App as a generated artifact. When a change affects addon.py, the App launcher/installer/build scripts, or any origin_mcp code executed by the Origin-side bridge, do not test against a previously installed App.

  • Before the real-Origin verification, stop the running bridge and rebuild and overwrite the local App installation:

    python scripts\build_origin_app.py --force --install
    
  • Start Origin MCP Bridge Start again after installation, then verify the live connection with origin-mcp status and origin-mcp doctor --ping-origin.

  • Repacking and reinstalling both OPX files is required when testing App packaging, metadata, registration, or distributable installation. For normal local source debugging of an already registered App, overwriting the App folders with --install is sufficient.

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 · 23 lines · 210 tokens per session scan A 37fba3f1fdf0

Subscribe to this mod's changes

origin-mcp AGENTS.md is an instructions file published in the GitHub repository Ge-Shun/origin-mcp (149 stars, last pushed 9d ago), licensed MIT. It adds 210 tokens to every session, about $0.0008 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 2026-08-30.

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