Use when modifying existing files, refactoring, improving code quality, or touching legacy code by applying the Boy Scout Rule to leave code better than you found it.

Static analysis security vulnerability scanner for Ruby on Rails applications. Use when analyzing Rails code for security issues, running security audits, reviewing code for vulnerabilities, setting up security scanning in CI/CD, managing security warnings, or investigating specific vulnerability types (SQL injection, XSS, command injection, etc.). Also use when configuring Brakeman, reducing false positives, or integrating with automated workflows.

Safely review and merge remote branches into stable. Trigger when: (1) reviewing open PRs, (2) integrating feature branches, (3) checking for stale branches with potential conflicts.

Scan documents and slides for off-brand colors, fonts, and logos. Validate against brand guidelines and suggest corrections.

Use to manage brand guidelines, approvals, and ongoing refresh cadence.

brand-legal-review

Use this skill when creating, modifying, or reviewing API endpoints and routes. This includes SDK routes (/v1/*), Dashboard routes (/api/v1/*), request/response structures, input validation, OpenAPI documentation, or API-related middleware.

Use this skill when implementing, reviewing, or debugging error handling in the Brokle codebase. This includes repository error mapping, service layer AppError constructors, handler response mapping, domain alias imports, or understanding the industrial error handling flow.

Use this skill when writing, reviewing, or improving tests for the Brokle platform. This includes creating service tests, domain tests, integration tests, or understanding what to test versus what to skip based on the pragmatic testing philosophy.

Systematically tests UI functionality, validates design fidelity with AI visual analysis, monitors console output, tracks network requests, and provides debugging reports using Chrome DevTools MCP. Use after implementing UI features, for design validation, when investigating console errors, for regression testing, or when user mentions testing, browser bugs, console errors, or UI verification.

This skill should be used when users need to capture screenshots of web pages. It supports full-page screenshots, viewport-specific captures, responsive screenshots across multiple device sizes, and element-specific screenshots. Use this skill for visual testing, documentation, design reviews, or any task requiring automated browser screenshots.

This skill should be used when extracting structured data from scientific PDFs for systematic reviews, meta-analyses, or database creation. Use when working with collections of research papers that need to be converted into analyzable datasets with validation metrics.

Use when reallocating spend across channels/ad sets or setting guardrails

Bug Fix Agent - Automated bug fixing with review loopback and auto-commit to main branch. Fixes bugs, tests them, reviews quality, and commits when quality gates pass.

You are an expert code reviewer. Your role is to independently review fix plans produced by another agent and identify issues, gaps, or risks.

Reproduce, isolate, and fix a bug (or failing build/test), then summarize root cause, fix, and verification steps. Use when the user reports a bug, regression, or failing build/test and wants a fix.

Discover edge cases and test coverage gaps through systematic analysis. Use when analysing test coverage, finding bugs, hunting for edge cases, or when code-reviewer identifies test gaps.

Generate reference docs, build Sphinx documentation, and review all screenshots

Enforces rules for creating and managing build notes files within the /ProjectDocs/Build_Notes/ directory, including naming conventions, content structure, and update frequency.

Builder user experience systems for Three.js building games. Use when implementing prefab/blueprint save/load, undo/redo command patterns, ghost preview placement, multi-select, or copy/paste building mechanics. Covers the UX layer that makes building feel responsive and intuitive.

Expert for building user stories using Test-Driven Development (TDD) with NestJS and @lenne.tech/nest-server. Implements new features by creating story tests first in tests/stories/, then uses generating-nest-servers skill to develop code until all tests pass. Ensures high code quality and security compliance. Use in projects with @lenne.tech/nest-server in package.json dependencies (supports monorepos with projects/*, packages/*, apps/* structure).

Execute whiteboard plans through gated phases with subagent dispatch. Require feature branch. Each phase goes through DISCOVERY -> PRE-GATE (pseudocode) -> IMPLEMENT -> POST-GATE (reviewer) -> CHECKPOINT. Produce per-phase commits, execution log, and working code with tests. Use after /code-foundations:whiteboarding to implement saved plans. Triggers on: build it, execute plan, implement the whiteboard, run the plan.

Use when generating multiple curriculum-aligned concept files in parallel (5+ concepts) - researches curriculum, creates concept list, spawns parallel generation agents, orchestrates review loop until all pass

Execute automated release workflow for Rust projects using Conventional Emoji Commits. Analyze commits since last release, determine semantic version bump (MAJOR/MINOR/PATCH), update Cargo.toml, generate changelog with git-cliff, create git tags, and publish GitHub releases. Use when the user requests to cut a release, bump version, create a release, or publish a new version. Also use when the user asks about the release process or wants to preview what the next release would be.

Build production-grade CLI tools with Bun. Reference implementation covering argument parsing patterns (--flag value, --flag=value, --flag), dual markdown/JSON output, error handling, subcommands, and testing. Use when building CLIs, designing argument parsing, implementing command structures, reviewing CLI quality, or learning Bun CLI best practices.

Use when running Nuxt 3 with Bun runtime, building Vue/Nuxt apps with Bun, or configuring Nuxt projects to use Bun for development and production.

Use when building or running SvelteKit apps on Bun, including SSR, adapters, and Bun-specific APIs

TanStack Start full-stack React framework with Bun runtime. Use for TanStack Router, server functions, vinxi, or encountering SSR, build, preset errors.

Expert business planning consultant for creating comprehensive, investor-ready business plans from scratch or refining existing plans. Use when users request help creating a new business plan, updating/reviewing an existing business plan, need guidance on specific business plan sections, or require financial projection assistance. Applies to startups and established businesses across all industries seeking funding or strategic planning.

C4 architectural modeling for documenting software architecture. Use when creating architecture diagrams, planning new systems, communicating with stakeholders, or conducting architecture reviews.

Review C99 code for compliance with HBF's strict coding standards including compiler warnings, Linux kernel style, and licensing constraints. Use when reviewing or writing C code in this project.

ALWAYS use this skill proactively for Consumer Affairs Django repositories (located in ../ca/ directory) when ANY of these occur - (1) After writing or modifying ANY Python code files in CA repos (2) After tests pass and before telling user work is complete (3) User mentions linting, formatting, ruff, code style, or code quality (4) After using the ca-django-tests skill successfully (5) Before preparing to commit code. This skill runs 'ca exec ruff format' and 'ca exec ruff check --fix' to ensure code quality. CRITICAL - Always run this automatically after code changes and before declaring work complete.

Invoke the Gemini CLI for architecture and scalability review.

Post-mortem on recent campaign

This skill should be used when content teaches patterns (skills, subagents, ADRs, PHRs, specifications) that have canonical sources elsewhere. Prevents format drift by ensuring content references and follows the authoritative format from canonical sources. Use before implementing lessons that teach platform patterns, or when reviewing content for format consistency.

Develops Canva Apps SDK apps - read documentation, UI kit components, design guidelines, CLI commands. Use when building or developing Canva apps.

Design Canvas LMS assignments using evidence-based learning science principles from the Four Learning Design Pillars. Use when educators want to create pedagogically sound assignments, need help writing assignment descriptions with clear objectives, want rubric suggestions, or are creating quizzes/discussions/peer reviews. Integrates with canvas-mcp for direct Canvas creation.

Creates and extends Canvas UI components with Monaco editor, split views, and educational context. Use when building Canvas panel, editor, or preview features.

Floating toolbar that overlays design review findings directly on web pages in real-time. Displays numbered badges on problematic elements with severity-colored borders, hover popovers for issue detai

Best practices for Capacitor app development including project structure, plugin usage, performance optimization, security, and deployment. Use this skill when reviewing Capacitor code, setting up new projects, or optimizing existing apps.

Complete guide to implementing live updates in Capacitor apps using Capgo. Covers account creation, plugin installation, configuration, update strategies, and CI/CD integration. Use this skill when users want to deploy updates without app store review.

Analyze recent conversation context and capture learnings—either to project knowledge files or to skills/commands/subagents for cross-project reuse.

Personal career coach with 4 modes: weekly reports, monthly reflections, self-reviews, promotion assessments

Use when writing or reviewing career documents including research statements, teaching statements, diversity statements, CVs, or biosketches. Invoke when user mentions research statement, teaching philosophy, diversity statement, biosketch, academic CV, faculty application, or needs help with career narrative, positioning, or professional documents for academic advancement.

Initialize career development system (job description, ladder, reviews, goals)

Use when writing user-facing copy, error messages, UI text, empty states, onboarding, or reviewing voice/tone

Convert markdown newsletters to styled HTML matching the Catskill Crew brand and preview in browser

Evaluates Catz Android coding challenge submissions against SWORD Health requirements. Use when reviewing or assessing this coding challenge. Produces a structured markdown report with seniority level assessment (Junior/Mid/Senior/Staff) and confidence rating, covering requirements compliance, architecture, code quality, testing, and documentation.

Review code formatting and documentation using 74-item checklist from Code Complete. Two modes: CHECKER executes checklists with evidence tables, APPLIER guides layout decisions and commenting strategy. Use when code has inconsistent formatting, poor visual structure, unclear comments, or readability issues. Triggers on: review formatting, check layout, code style review, commenting style, make readable, multiple statements per line, endline layout, comments repeat code.