pgschema

Fix a bug from a GitHub issue using TDD. Analyzes the issue, creates a reproducing test case, implements the fix, verifies it, and creates a PR. Use this skill whenever working on a GitHub issue, bug report, or regression — even if the user just provides an issue number or URL.

Verdict PR review comments pragmatically - address valid ones, dismiss over-engineered or incorrect ones, and respond to each. Use this skill when handling PR review feedback, code review comments, or when asked to address reviewer suggestions.

Consult PostgreSQL's pg_dump implementation for guidance on system catalog queries and schema extraction when implementing pgschema features. Use this skill when adding new schema object support, debugging inspector.go queries, understanding how PostgreSQL represents objects internally, or handling version-specific features across PostgreSQL 14-18.

Consult PostgreSQL's parser and grammar (gram.y) to understand SQL syntax, DDL statement structure, and parsing rules when implementing pgschema features. Use this skill when generating DDL in internal/diff/*.go, validating SQL syntax, understanding keyword precedence, or learning how PostgreSQL handles specific constructs like triggers, indexes, generated columns, or constraint triggers.

Run pgschema automated tests (go test) to validate diff logic, plan generation, and dump functionality using test fixtures. Use this skill whenever you need to run tests, debug test failures, add new test cases, regenerate expected outputs, or validate changes across PostgreSQL versions 14-18.

Connect to live PostgreSQL database to validate schema assumptions, compare pg_dump vs pgschema output, and query system catalogs interactively. Use this skill whenever you need to test queries against a real database, verify how PostgreSQL stores or formats objects, debug introspection issues, or check version-specific behavior (PostgreSQL 14-18).