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Get Started Free →Use when the user wants to run SQL against Alibaba Cloud MaxCompute (ODPS), inspect MaxCompute schemas, build or maintain a semantic package, enrich package semantics, manage MaxCompute UDFs, or record verified/failed SQL memory through the `mcs` CLI.
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-04 | ✗→✓ | ▲ Improved | -39% | 0% |
| case-05 | ✗→✓ | ▲ Improved | -60% | 0% |
| case-06 | ✗→✓ | ▲ Improved | -62% | 0% |
| case-07 | ✗→✓ | ▲ Improved | -55% | 0% |
| case-08 | ✗→✓ | ▲ Improved | -78% | 0% |
This installed file is a discovery stub. Before using mcs for real work, load the runtime workflow that matches the task:
| Intent | Load | | --- | --- | | Answer a data question / write SQL / inspect schema for a query | mcs skill get query | | Query when mcs show reports no semantic package | mcs skill get query | | Build / refresh / onboard a semantic package | mcs skill get build | | Review / apply annotation suggestions, semantic-package proposals, or enrich semantics | mcs skill get enrich | | Create, link, edit, or diagnose profiles | mcs skill get onboarding | | Record or recall verified / failed SQL | mcs skill get memory | | Create or manage MaxCompute UDFs | mcs skill get udf | | File an upstream bug / issue against this skill | mcs skill get report-issue |
When answering a data question, producing SQL, inspecting schema for a query, or recovering from a query error, never run mcs build or mcs package propose. If mcs show or mcs status reports no build data / no semantic package, load mcs skill get query and use its cold-start workflow with live mcs meta commands. mcs sql review still runs syntax / dialect checks without a package; use those issues, but expect semantic hints and coverage to be skipped.
Run mcs build only when the user explicitly asks to build, refresh, onboard, or maintain a semantic profile.
bashmcs skill catalog # list available runtime workflows mcs skill get query # load the query workflow mcs skill get query --full # include references
Other measured skills in the registry, with their headline benchmark lift.