dotfiles

Measure and quantify performance with profilers and flame graphs. Use this skill whenever the user wants to profile code, find hot spots or bottlenecks, generate a flame graph, benchmark code, or measure whether an optimization actually helped — including when the user just says something is "slow" and wants to know why. Covers FlameGraph (perf, sample), language-native profilers (go pprof, cargo flamegraph, py-spy), hyperfine, and differential flame graphs for before/after comparison.

Reconstruct git commit history on a development branch. Resets messy commits back to a clean diff against the base branch, then guides the user to rebuild logically coherent, minimal commits one by one. Use this skill when the user wants to clean up commits, reorganize history, split commits, squash and recommit, or tidy up before a PR. Provides a more controllable alternative to interactive rebase.

Design test cases following Kent Beck and t-wada principles. Use this skill when the user asks what to test, wants to design test cases, needs a test strategy, or wants to identify edge cases and boundary conditions for a feature. Focuses on behavior-driven testing with the 0-1-N rule.

Determines the next version number following Semantic Versioning 2.0.0. Use this skill when the user asks to determine the next version, bump the version, prepare a release, or create a version tag. Analyzes commit history with Conventional Commits to recommend the appropriate MAJOR, MINOR, or PATCH bump.

Analyze and create a refactoring plan for codebases grown through vibe coding. Use this skill when the user wants to clean up, reorganize, or redesign code that has been built incrementally and become messy. Also use when the user mentions technical debt, legacy code cleanup, code reorganization, or wants to restructure a project without breaking existing behavior. This skill produces a plan — it does not execute changes itself.

Enforces Conventional Commits 1.0.0 for all git commit messages. Use this skill whenever the user asks to commit changes, create a commit, or save progress to git. Ensures commit messages follow the conventional format with proper type, scope, and description.

Architecture and design consultation for applications. Use this skill when discussing system architecture, design patterns, tech stack decisions, API design, or module structure. Covers Unix/Linux Philosophy for CLI tools and Twelve-Factor App for web applications and microservices.

Feature implementation with TDD methodology. Use this skill when the user asks to implement a feature, fix a bug, add functionality, or build something new. Guides development through the Red-Green-Refactor cycle with Tidy First principles to keep structural and behavioral changes separate.

Run all verification checks (static analysis, tests, formatting) on the codebase. Use this skill whenever the user asks to verify code quality, run all checks, lint, type check, run tests, format code, or ensure the codebase is clean before committing or deploying. Discovers project-configured commands from build files and runs them in the right order.

Automated documentation and technical writing. Use this skill when the user wants to create, update, or audit documentation — including README, /docs directory, and inline code comments. Also use when adding a new module, after refactoring, or when the user mentions "docs", "documentation", "README", or "comments need updating". This skill both analyzes and executes documentation changes.