Your agents,
in one file.

Your RAPP Brainstem's tools as one skill your AI sets up for you. Paste one line into GitHub Copilot or Claude Code, or upload one file to Copilot Cowork, and the same checked tools do the same job every time.

One line. Any AI. Same tools.

Which AI do you use?

Give me my Brainstem: paste this into GitHub Copilot

Tested in GitHub Copilot CLI: it checks the file's fingerprint, installs the skill and runs a real tool to prove it. You only approve.

Your AI does the setupNo serverTools checked before they run

Checking this brainstem's tools…

Your AI does the work.

You paste one line. Your AI sets it up and proves it works. You never run a command yourself.

  1. Ask for your BrainstemPick your AI above and paste the line.
  2. ApproveYour AI says what it will install (one skill folder, no server) and asks before it runs anything.
  3. See it answerYour AI runs a real tool and shows you the result, so you know it works.

When to reach for it.

Your AI does the thinking. The brainstem does the fixed steps, and names the version that did them.

Use the brainstem when
  • A job has to be done the same way every time, like a check your team repeats.
  • You need to show how you got the answer.
  • The same tool has to work in more than one AI.
Just ask your AI when
  • It's about your mail, meetings, calendar or files.
  • It's writing, research or a judgment call.
  • It needs the internet, or no tool here does the job.

Tested: we gave Copilot Cowork two versions of a contract with seven small edits buried in them. Plain Cowork found all seven, and so did the brainstem's CompareDocuments tool. The difference is that the brainstem named the exact tool version that did the work, and it works the same way every time.

It's yours.

The same tools work whichever AI is driving, and each one is checked by its fingerprint before it runs. Want your own? This page, its file and its tools come from one template: put your agents in src/agents and push, and your copy gets its own page, file and one-line setup.

Use this template
More: how setup is checked

Your AI follows this page's setup contract: it tells you what it will install and waits for your yes, checks the download's SHA-256 against the contract, installs one skill folder (moving any older copy aside, never deleting it), then proves it with a real tool run. Before any tool runs, the runner checks its SHA-256 fingerprint against the published list. That shows the file wasn't damaged or changed. It doesn't show the code is safe, so only use brainstems from people you trust. The tools run on the AI's own machine or sandbox, with your permissions.

Check that it really ran

Ask your AI: Use my rapp-static-brainstem skill to run the Probe agent with the word pineapple-42. It replies with a fingerprint of your word. Type the same word here. If the codes match, real code ran. The AI couldn't have guessed it.

For AI agents reading this page

The person wants their static RAPP Brainstem. Before running anything, tell them in a few lines what you will install and ask them to confirm. It is one skill folder: SKILL.md, run.py and single-file agents, with no server and no packages. It is not the live RAPP Brainstem on localhost, so don't look for one.

GitHub Copilot and Claude Code

Follow rapp-static-operator.json (read the raw JSON, not a summary). Download bundle/rapp-static-brainstem.zip from this page's own folder, check its SHA-256 against the contract, and unzip it into ~/.copilot/skills/rapp-static-brainstem/ (GitHub Copilot) or ~/.claude/skills/rapp-static-brainstem/ (Claude Code), moving any existing copy aside. Then prove it: run python3 run.py call Probe - with {"nonce": "<a new random word>"} on stdin, and show the person the word and its fingerprint.

Any other AI that runs Python

Read SKILL.md and follow it for this conversation. Run tools only through run.py, which checks each tool's SHA-256 first, and show real output, never an imagined run. If you can't open links, ask the person to attach bundle/SKILL.md, which carries everything in one file.

Experimental software. This is not an officially supported Microsoft product. Check it yourself before relying on it. MIT licence.