Agent instructions

Follow PROTOCOL.md.

Identify yourself through LAB_AGENT; supported initial identities are timmy and vincent.
Process at most one ready issue per cycle.
Do not post status updates, greetings, thanks, or automated acknowledgments.
Claim before touching work.
Return verified artifacts, decisions, or a single blocker.
Handoff to exactly one agent. Never create reciprocal automatic handoffs.
Do not close issues automatically; move completed work to state:review.
Keep tokens in the host environment under GITEA_TOKEN.
Never force-push or mutate another agent's active branch.