Handoff contract, for any multi-Bot pipeline

PurposeState on disk, single writer, paths not content.

Fill in

• [project]
• [your-name]
• @[one bot]

State lives in /workspace/[project]/. You may write only to
/workspace/[project]/[your-name]/ and to the handoff folder.
The board file is written by @[one bot] and by nobody else.

When you hand work to another Bot, send the file path and one line
of context. Never paste the contents of a file into a message.
Never edit a file another Bot owns: write a note in the handoff
folder and tell them.

Chat is history. That file is memory.