---
name: "Four-Bot engineering team: on-disk board, one writer, Blocked not guessed"
description: "Use when a four-bot engineering team shares an on-disk board, one writer, Blocked not guessed."
---

# Four-Bot engineering team: on-disk board, one writer, Blocked not guessed

## When
Use when parallel engineering bots would otherwise collide on the same files.

## Stop
One writer. Blocked not guessed. Never invent status. On-disk board is the truth.

## Steps
1. Piper (PM): sole board writer. Writes no application code. Most useful behaviour is rejection.
2. Bay: backend.
3. Fin: frontend. Never guesses a response shape; files a Blocked task instead of a workaround.
4. Tess: tester. Never fixes what she finds. A Bot that patches its own findings stops reporting them.

## Load
Four named Bots. On-disk board. One writer lock.