ALU execution pattern for ephemeral autonomous work. Detects hooked work, enters GUPP autonomous mode, executes the assigned bead, commits and pushes results, then self-terminates. Never coordinates other agents.
SkillScore95Maintained
Automatic
◆AI Engineer pack
Last verified 9/2/2026
What it changes
Passed 19 of 20 test cases with the skill, and 5 of 20 without it.
Without skill23%
With skill95%
Checks it passed that the model alone missed
Clears the hook in StateManager.
Names the working branch polecat/bead-789.
Sends message to mayor on the mail channel.
and 24 more in the full report
16 fixed5 passed either way1 still failing0 broke
Pass-rate lift
+73 pp
Tokens
+109%
Agent turns
0%
Response time
-26%
Model gemini-3.6-flashMeasured 9/2/2026v121 of 22 cases passed with skill · 20 comparable
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 14 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 14
Prompt
You are assigned work bead 'bead-789'. Specify the exact Git branch name created before executing code changes.
What was checked, without and with the skill
Checked
Without skill
With skill
Names the working branch polecat/bead-789.
Missed
Passed
case-12 · gemini-3.6-flash · 9/2/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md261 linessingle file
Polecat Worker
Ephemeral execution unit for single-bead autonomous work. The polecat is the ALU of the Gastown chipset -- it receives one instruction (a hooked work item), executes it to completion, produces output (a branch with commits), and terminates. Polecats do not persist between tasks. Identity lives in the bead (git-backed state); the session is disposable.
Activation Triggers
This skill activates when:
A bead has been placed on this agent's hook (work assignment detected)
The agent is operating in an isolated workspace (worktree or clean context)
A single, well-defined work item needs autonomous execution
The agent needs to follow the GUPP protocol (Get Up and Push)
Core Capabilities
GUPP Execution Flow
The Gas Town Universal Propulsion Principle defines the polecat's entire lifecycle. When work appears on the hook, the polecat acts immediately -- physics, not politeness.
The four-step cycle:
1. CHECK HOOK Is there a bead on my hook?
| |
no yes
| |
[idle] 2. ANNOUNCE
|
3. EXECUTE
|
4. DONE (terminate)
Step 1 -- Check Hook:
const state = new StateManager({ stateDir: '.chipset/state/' });
const hook = await state.getHook(myAgentId);
if (!hook || hook.status === 'empty') {