MUST USE for any frontend, web UI, or visual implementation work — building, styling, or redesigning pages/components, responsive layouts, motion, component architecture, and production-surface polish. Triggers: frontend, UI, component, CSS, responsive,…
Chrome browser control: open pages, take ref snapshots, click, type, screenshot. Requires cli-jaw server running.
Unified desktop + browser automation. Routes DOM targets to CDP (cli-jaw browser), desktop apps to Computer Use, hybrid combos to both. Codex desktop/CLI required for Computer Use; macOS is app-scoped and Windows is window-scoped.
MUST USE for module boundary work, circular dependency detection, coupling review, barrel or re-export changes, and validation placement decisions. Triggers: circular import, module split, layer violation, dependency direction, utils growth, barrel file,…
MUST USE for backend, API, server, or database work — API design, architecture, database optimization, security hardening, error handling, middleware, observability, queues, and long-lived connections. Triggers: backend, API, REST, GraphQL, schema, migration,…
MUST USE for code review and review-readiness — review process, quality thresholds, antipattern detection, review verdicts, and giving/receiving feedback. Triggers: review this, code review, PR review, check my diff, before merge, antipattern,…
MUST USE for data engineering and analysis work — pipelines, ETL/ELT, data quality, SQL optimization, schema evolution, backfills, and reporting. Triggers: ETL, ELT, pipeline, data quality, SQL optimization, backfill, migration, schema drift, validation,…
MUST USE for any real runtime debugging in any language — crashes, silent failures, wrong output, build/test failures, flaky tests, performance regressions, and integration bugs. A 5-phase root-cause method: architecture check → investigate → analyze →…