Advanced Jest test modes in the Commons monorepo — /local/ tests, watch mode, live console output, multi-file batching, and test-failure troubleshooting. For routine "run the test for this file" resolution, call the nx-project-for-file tool instead.
Use Graphite CLI (gt) for stacked PRs and branch management. Use when creating branches, committing changes, submitting PRs, syncing with trunk, or managing stacked pull requests.
Investigate data-integrity / "why does this data look wrong" questions in the Commons codebase (mismatched IDs, orphaned rows, cross-entity divergence, unexpected duplicates, values that don't agree across tables). Use when a ticket or user asks WHY a piece of data is in a surprising state and you must trace it to a root cause through code + production data. Pairs with the commons-sql-query skill for the SQL itself.
Advanced lint/format modes in the Commons monorepo — git-affected linting across a stack, auto-fix, and the full-CI lint pipeline. For routine "lint this file's project" resolution, call the nx-project-for-file tool instead.
Build administrative CRUD interfaces in the Commons admin panel following established patterns for list, create, and edit views.
Create job files in the Commons monorepo. Use when the user wants to create a new job, backfill script, cache job, export job, sync job, bulk operation, cron task, or any background task that runs via HTTP POST endpoint.
Create database migrations from templates in the Commons monorepo. Use when the user wants to create a migration, add database columns, create tables, or modify the database schema.
How to use and add DataLoaders in the Commons backend. Use when implementing batched lookups, adding a new loader, wiring field resolvers to loaders, or avoiding N+1 via request-scoped batching and caching.