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Write, edit, and refactor code with full tool access. Use this skill when you need to write or modify code, create files, run commands, or implement features.

Builds and refactors code safely; prefers small diffs, clear validation steps, and testable outcomes.

Guidelines on making Git commits.

Tests error visibility for build step failures

Message to print before failing

Text to echo

Updated skill

Automated test generation, review, and execution for pytest-based projects.

Guidelines on writing tests for the backend

Test-pattern doctrine. Tests are copyable from ~/.claude/patterns/tests/, three categories: input boundary, contract, effect. Make sure to consult this skill whenever code changes touch a boundary where someone else's code meets yours, even if the user doesn't say "test" or "TDD" — Claude tends to ship untested boundary code, and this skill prevents the Saturday phone call. TRIGGER when: code unde

Set up a personal Slack bot — create the app, configure scopes, store the token, verify the connection.

Structured investigation and troubleshooting for production incidents, build failures, performance issues, and mysterious bugs. Use when the user says 'debug this', 'why is this failing', 'investigate this issue', 'troubleshoot', 'production is down', 'this is broken and I don't know why', 'help me find the root cause', 'postmortem', 'incident response', or 'something is wrong'. Also triggers on '