All Skills

Use when you need to apply Java exception handling best practices — including using specific exception types, managing resources with try-with-resources, securing exception messages, preserving error context via exception chaining, validating inputs early with fail-fast principles, handling thread interruption correctly, documenting exceptions with @throws, enforcing logging policy, translating exceptions at API boundaries, managing retries and idempotency, enforcing timeouts, attaching suppressed exceptions, and propagating failures in async/reactive code. Part of the skills-for-java project

Use when you need to review, improve, or refactor Java code for type design quality — including establishing clear type hierarchies, applying consistent naming conventions, eliminating primitive obsession with domain-specific value objects, leveraging generic type parameters, creating type-safe wrappers, designing fluent interfaces, ensuring precision-appropriate numeric types (BigDecimal for financial calculations), and improving type contrast through interfaces and method signature alignment. Part of the skills-for-java project

Use when you need to review, improve, or refactor Java code for object-oriented design quality — including applying SOLID, DRY, and YAGNI principles, improving class and interface design, fixing OOP concept misuse (encapsulation, inheritance, polymorphism), identifying and resolving code smells (God Class, Feature Envy, Data Clumps), or improving object creation patterns, method design, and exception handling. Part of the skills-for-java project

Greets the user and summarizes the current project. Use when someone wants a quick project overview.

Red-Green-Refactor TDD methodology with mandatory failing tests, minimal implementation, quality refactoring, and 80% coverage gating.

All-in-one project configuration and health management. Sets up new projects (settings.local.json, CLAUDE.md, .gitignore), audits existing projects (permissions, context quality, MCP coverage, leaked secrets, stale docs), tidies accumulated cruft, captures session learnings, and adds permission presets. Uses sub-agents for heavy analysis to keep main context clean. Trigger with 'project health', 'check project', 'setup project', 'kickoff', 'bootstrap', 'tidy permissions', 'clean settings', 'capture learnings', 'audit context', 'add python permissions', or 'init project'.

Get a second opinion from Gemini on code, architecture, debugging, or security. Uses direct Gemini API calls — no CLI dependencies. Trigger with 'ask gemini', 'gemini review', 'second opinion', 'peer review', or 'consult gemini'.

Use when you need to review, improve, or write Java unit tests — including migrating from JUnit 4 to JUnit 5, adopting AssertJ for fluent assertions, structuring tests with Given-When-Then, ensuring test independence, applying parameterized tests, mocking dependencies with Mockito, verifying boundary conditions (RIGHT-BICEP, CORRECT, A-TRIP), leveraging JSpecify null-safety annotations, or eliminating testing anti-patterns such as reflection-based tests or shared mutable state. Part of the skills-for-java project

Use when you need to apply data-oriented programming best practices in Java — including separating code (behavior) from data structures using records, designing immutable data with pure transformation functions, keeping data flat and denormalized with ID-based references, starting with generic data structures converting to specific types when needed, ensuring data integrity through pure validation functions, and creating flexible generic data access layers. Part of the skills-for-java project

Use when estimating cardiovascular risk, stroke risk in atrial fibrillation, bleeding risk, pneumonia severity (CURB-65), or venous thromboembolism probability (Wells DVT/PE). Includes ASCVD PCE, CHA2DS2-VASc, HAS-BLED, Framingham, HEART, CURB-65, and Wells scores.

Installs brewcode prerequisites (brew, coreutils, jq, grepai).

Generate images using Google's Gemini API — hero backgrounds, OG images, placeholder photos, textures, and style-matched variants. Uses free-tier models for drafts, paid for finals. No dependencies beyond Python 3. Trigger with 'generate image', 'gemini image', 'make a hero background', 'create placeholder photo', 'generate OG image', 'AI image', or 'need an image for'.

Use when creating, refining, or validating product planning documents (project brief, PRD, roadmap, architecture notes, task breakdown, risks).

Use when API code changes (routes, endpoints, schemas). Enforces Swagger/OpenAPI sync. Pauses work if documentation has drifted, triggering documentation-audit skill.

Manage long development sessions with structured progress tracking. Creates SESSION.md files for multi-session handoff, checkpoints progress with WIP commits, and captures learnings to CLAUDE.md. Trigger with 'start session', 'checkpoint', 'wrap session', 'resume session', or 'context getting full'.

Look up Gemini API documentation, SDK patterns, and current best practices when building with Google Gemini. Maps topics to local cached docs and live sources, provides correct @google/genai patterns, and highlights deprecated vs current API usage. Trigger with 'gemini docs', 'gemini guide', 'how to use gemini', 'gemini SDK', '@google/genai', or when building code that imports from @google/genai or google-genai.

Use when you need to generate an AGENTS.md file for a Java repository — covering project conventions, tech stack, file structure, commands, Git workflow, and contributor boundaries — through a modular, step-based interactive process that adapts to your specific project needs. Part of the skills-for-java project

Configures global exception handling middleware

Show users how Continuous Claude works - the opinionated setup with hooks, memory, and coordination

16 IFRS-compliant recipes for complex multi-step accounting in Jaz — prepaid amortization, deferred revenue, loan schedules, IFRS 16 leases, hire purchase, fixed deposits, asset disposal, FX revaluation, ECL provisioning, IAS 37 provisions, dividends, intercompany, and capital WIP. Each recipe includes journal entries, capsule structure, and verification steps. Paired with 13 financial calculators that produce execution-ready blueprints with workings.

Critique UI/UX designs for clarity, hierarchy, interaction, accessibility, and craft. Use for design reviews, PR feedback on UI changes, evaluating mockups, checking if a component is ship-ready, or when honest feedback is needed on whether something meets a high bar.

Generate a client-facing SEO report from the latest crawl data. Produces a professional HTML report with executive summary, key metrics, top issues, and comparison charts. Trigger with 'seo report', 'generate seo report', 'client seo report', or 'seo summary'.

Run UX walkthroughs and QA sweeps on live web apps using browser automation. Walks through apps as a real user, flags friction points and usability issues, tests CRUD operations, and produces ranked audit reports. Trigger with 'ux audit', 'ux walkthrough', 'qa test', 'test the app', or 'check all pages'.

Generate complete SEO setup for local business websites — HTML head tags, JSON-LD LocalBusiness schema, robots.txt, sitemap.xml. Australian-optimised with +61 phone, ABN, suburb patterns.