开发技能

PostgreSQL database standards for migrations, seeds, and schema management.

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Orchestrates SDD project initialization — version detection, environment verification, scaffolding, and git setup.

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Shared TypeScript coding standards for strict, immutable, type-safe code.

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Use after EZ_math_model coding has produced src/*.py and before packaging when code quality, reuse, vectorization, naming, or unnecessary complexity should be reviewed without changing behavior.

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Use when EZ_math_model coder or packaging fails repeatedly with the same error and needs root-cause analysis instead of another blind retry.

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Install genuine per-session cost tracking for Claude Code by wiring bundled logger scripts into the user's statusline — preserving any existing statusline and hooks. Use when the user asks to set up, install, enable, or repair cost tracking / cost logging / session cost capture. Idempotent; safe to re-run.

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Copy this repo's skills into another agent harness's skills directory by name — resolves the harness alias to its path via scripts/sync-targets.json and runs sync-skills.sh. Use only when the user asks to copy/sync/push the skills to another harness (oh-my-pi, opencode, kimi, codex, etc.) — never trigger automatically.

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Render a dashboard of the current Claude Code session — message counts, token usage, cache read/write, dollar cost, context %, lines changed, cost-per-turn sparkline, and a tool-call histogram — parsed from the session transcript JSONL by a bundled bash script. One bash call, zero analysis, zero confirmation. Optionally pass a session id to inspect a different session. Use when the user asks for session stats, usage, token or cost breakdown, or a session dashboard.

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Draft a changelog for the next release by summarizing git commits since the last tag. Use only when the user asks to draft release notes, write a changelog entry, or prepare the next version's notes — never trigger automatically.

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After an issue's PR has squash-merged on GitHub and its issue has closed: fast-forward the default branch, remove the issue-numbered nested worktree (.worktrees/<issue#>), and delete the local feature branch. Use when the user says to finish, tear down, or clean up a lane or worktree for a merged issue.

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Phase 5 of 5 — triage-first review orchestrator; dispatches up to 17 domain checks in parallel and compiles one report. Use only when the user asks to run Phase 5 or review a PR, branch, or set of changes — never trigger automatically after writing code.

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Systematic code review checklist and pre-commit quality gates for PRs. Use when: reviewing pull requests, checking code quality, before committing code. Keywords: review, PR, pull request, checklist, quality, commit, 審查, 檢查, 簽入.

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Create isolated git worktrees with smart directory selection and safety verification

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Search previous Claude Code conversations for facts, patterns, decisions, and context using semantic or text search

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Systematically trace bugs backward through call stack to find original trigger

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Write comments explaining WHAT and WHY, never temporal context or history

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Use each variable for exactly one purpose - no hybrid coupling or hidden meanings

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Refactor with tests first, one change at a time, never mix refactoring with bug fixes or new features

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Choose names that fully and accurately describe what the variable represents

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Name code by what it does in the domain, not how it's implemented or its history

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Declare variables in smallest possible scope, initialize close to first use, minimize span and live time

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Try 2-3 different approaches before implementing - don't settle for first design you think of

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Comment WHY code exists and non-obvious decisions, not WHAT code does (mechanics)

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Validate at every layer data passes through to make bugs impossible

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