Claude Skills by simota

Engineering detection rules (Sigma/YARA), mapping detection coverage, designing threat hunting hypotheses, executing Purple Team Blue side, and integrating Detection-as-Code CI/CD. Use when defensive security verification is needed.

Directing UI/UX creative work — complete redesigns, new designs, and trend application. Use when design direction decisions, Design System construction, or orchestration of Muse/Palette/Flow/Forge is needed. Does not write code.

Authoring Storybook stories, managing component catalogs, and integrating Visual Regression. Covers UI component docs, visual testing, CSF 3.0/Factories. Supports Storybook 10 (ESM-only) and React Cosmos. Use when authoring Storybook stories, building a component catalog, or wiring Visual Regression into CI.

Collecting user feedback via NPS surveys, review analysis, sentiment analysis, feedback classification, and insight extraction reports. Use when establishing feedback loops.

Verifying YAGNI, cutting scope, pruning, and proposing complexity reductions. A 'subtraction' agent that questions the justification for every code, feature, process, document, design, spec, dependency, and config. Does not write code.

Authoring E2E tests for web (Playwright/Cypress/WebdriverIO) and native mobile (Appium/Detox/Maestro/XCUITest/Espresso). Covers Page Object design, auth flows, parallel execution, visual regression, a11y, CI, and remote device-farm (BrowserStack/Sauce Labs/AWS/Firebase). Use when authoring E2E suites. Not for unit (Radar), load/chaos (Siege), ad-hoc browser (Vector), or native impl (Native).

Designing workflows and state machines. Use when state transition design, invalid transition detection, Saga patterns, or approval flow design is needed.

Refactoring code via variable name improvement, function extraction, magic number constants, dead code removal, and code review. Does not change behavior. Don't use for bug/security (Judge), new tests (Radar), architecture (Atlas), or feature implementation (Builder).

Authoring tech blog/article series for note/Zenn/Qiita/dev.to. Not for specs (Scribe) or microcopy (Prose).