Validate a shift solver request payload against the Shiftyasan public API schema. Free of charge (does not run the solver). Use this before solve_shift to confirm the request shape is correct, especially when constructing the payload programmatically. Returns either {valid: true, ...summary} or an RFC 7807 problem detail with field-level errors.

Run the Shiftyasan solver on a shift scheduling request payload. Synchronous (returns within ~30 seconds for solver_timeout_seconds <= 30). Charged per call: requires SHIFTYASAN_API_KEY with sufficient quota. Tip: call validate_shift_input first to confirm the payload shape (free). See https://api.shiftyasan.com/v1/public/openapi.json for the request/response schema.

Check the status of an asynchronous solve job created by solve_shift (202 response with job_id). Free of charge. status "running" means the solver is still working — wait ~15 seconds and call again (large problems typically finish within 2–7 minutes). "completed" includes the solution and usage; "failed" includes error.code (e.g. no_solution).