primer

Decomposes complex tasks into a DAG of atomic subtasks with model routing and dependency mapping. Use when the user wants to plan a multi-file feature, refactor, or system build without executing it yet. Triggers on "plan", "break down", "decompose", "task graph", or when the user wants to understand the work before committing to execution.

Performs structured code review across five dimensions: maintainability, security, performance, design, and completeness. Fixes issues before presenting code to the user — the review loop runs automatically, making every output a second draft, not a first. Triggers on "review", "code review", "check my code", or automatically after implementation tasks complete.

Enforces strict test-driven development via a RED-GREEN-REFACTOR state machine with a context whiteboard and deterministic validation gates. Use before writing any implementation code — write the failing test first, watch it fail, then implement. Triggers on "implement", "build", "fix", "add feature", or any task that produces code changes. Also use when the user says "test first", "TDD", or "red green refactor".

Sets up and manages isolated git worktrees for parallel agent work. Use when you need to run multiple agents on independent tasks simultaneously, or when any work benefits from branch isolation. Triggers on "worktree", "parallel", "isolate", or when dispatching concurrent agents.

Orchestrates multi-agent workflows with intelligent model tiering (Opus/Sonnet/Haiku), git worktrees for parallelism, DAG-based task scheduling, and self-correction loops. Use this skill whenever the user asks to implement a complex feature, build a system, refactor a large codebase, or any task that benefits from decomposition into parallel subtasks. Also trigger when the user mentions "multi-agent", "orchestrate", "parallelize", "decompose", "plan and execute", or wants to optimize Claude Code usage costs. Even if the user just says "implement X" where X is clearly multi-file or multi-concern, use this skill to decompose and coordinate efficiently.

Autonomous penetration testing via Shannon — a white-box security testing framework that executes real attacks and reports only confirmed exploits. Pairs with mao-security (static analysis) to provide full security coverage: static review on every PR, dynamic pentest before major releases. Requires Docker and Shannon installed: npx skills add unicodeveloper/shannon