Telemetry — MANDATORY. Every api.fabric.microsoft.com call must carry x-ms-fabric-skill: synapse-migration (az rest: --headers "x-ms-fabric-skill=synapse-migration"), including every LRO poll, fabric_lro and retry. Snippets omit it — add it anyway.

OFFLINE LAKEHOUSE ARTIFACT FAST PATH — DECIDE FIRST. For a no-live-call request with complete supplied inputs and contracts, load only the fast path; do not load migration-planning-reference.md, dedicated-pool-conversion.md, or implementation scripts. Use one generator for expected-schema.json, artifacts, and final-byte hashes, then one verifier. Do not manually edit artifacts or reread resources. Do not inspect generated files or run post-pass spot checks. Stop when verification passes or fails. Do not use this path for a Warehouse target; incomplete and large-procedure requests use their own routes.