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Use when investigating any bug, error, crash, stack trace, failing or flaky test, incident, regression, unexpected behavior, or "why is this happening" question - before proposing or applying a fix.
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
Based on SOC occupation classification
Use when reviewing code, a diff, a module, an architecture, or a design/spec document against house standards - including multi-expert panel reviews ("review with a DDD expert and an asset-finance expert"). Also when running a removal-first simplification sweep: "what can we remove", "product simplification review".
Use when executing an implementation plan or building a scoped feature or fix - after scope is clear, before code gets written. Triggers on "implement the plan at PATH", "start slice SP-2b".
Use when an implementation needs proof against the live running stack: after build completes, before ship, or when asked to verify, e2e-test, smoke-test, or demo that an API, UI, or DB change actually works.
Use when building or styling sportsbook, betting, or casino (iGaming) interfaces: odds displays, betslips, live-event states, suspended markets, casino game grids, or wallet and money surfaces.
Use when writing or reviewing code that posts, holds, voids, reverses, or reconciles money movements - double-entry postings, wallet balances, idempotency keys, FX conversion, or Blnk / pgledger integration.
Use when creating or reviewing database migrations - Liquibase or Flyway, new tables, columns, indexes, constraints, backfills, or any DDL against Postgres.
| name | debug |
| description | Use when investigating any bug, error, crash, stack trace, failing or flaky test, incident, regression, unexpected behavior, or "why is this happening" question - before proposing or applying a fix. |
Discipline (rigid - do not skip steps):
git bisect, or toggling recent changes).When the user asked "why is this happening" rather than "fix it", or when another skill (e.g. e2e) routed the failure here for diagnosis: the diagnosis is the deliverable. Report findings and hand the fix to build.