Drive a change through a red-green-refactor loop - failing test first, minimal code to pass, then clean up. Use when implementing a feature or fixing a bug where correctness matters and a test can pin the behavior. Says "TDD", "test first", "red green refactor", "write the test first".

PostgreSQL database patterns for query optimization, schema design, indexing, and security. Based on Supabase best practices.

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

Autonomous, safety-first pull request review-and-merge pass over a repository with many open PRs, on any tech stack (Node, PHP, Go, Python, Rust, Ruby, Java/Kotlin, Android, monorepos). Reviews each PR's full diff, classifies it CLEAN / FIXABLE / BLOCKED, fixes small issues, merges safe PRs one at a time, verifies the default branch still builds and passes tests, and produces a final report. Use this skill whenever the user mentions a backlog of pull requests, asks to review and merge PRs, clear the PR queue, "merge what's safe", check that nothing breaks after merging, or hands PR handling to an agent while they are away, even if they don't say "skill" or name a specific stack. Supports "review only" / "dry run" mode.

Manages shadcn components and projects — adding, searching, fixing, debugging, styling, and composing UI. Provides project context, component docs, and usage examples. Applies when working with shadcn/ui, component registries, presets, --preset codes, or any project with a components.json file. Also triggers for "shadcn init", "create an app with --preset", or "switch to --preset".

Create employment contracts, offer letters, and HR policy documents following legal best practices. Use when drafting employment agreements, creating HR policies, or standardizing employment documentation.

Build scalable design systems with Tailwind CSS v4, design tokens, component libraries, and responsive patterns. Use when creating component libraries, implementing design systems, or standardizing UI patterns.

Design durable workflows with Temporal for distributed systems. Covers workflow vs activity separation, saga patterns, state management, and determinism constraints. Use when building long-running processes, distributed transactions, or microservice orchestration.

Master authentication and authorization patterns including JWT, OAuth2, session management, and RBAC to build secure, scalable access control systems. Use when implementing auth systems, securing APIs, or debugging security issues.

Test web applications with screen readers including VoiceOver, NVDA, and JAWS. Use when validating screen reader compatibility, debugging accessibility issues, or ensuring assistive technology support.

Automate Salesforce tasks via Rube MCP (Composio): leads, contacts, accounts, opportunities, SOQL queries. Always search tools first for current schemas.

Automate Mailchimp email marketing including campaigns, audiences, subscribers, segments, and analytics via Rube MCP (Composio). Always search tools first for current schemas.

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

Use for ANY Croatian/Serbian cadastre (katastar) or land-registry (zemljišne knjige, gruntovnica, ZK) question - looking up parcels (čestica, k.č.) by cadastral municipality (katastarska općina, k.o.), finding owners (vlasnici, suvlasnički udjeli, vlastovnica / B-list), possessors (posjedovni list), land-registry units (zemljišnoknjižni uložak), encumbrances (teret, teretovnica / C-list), or parcel geometry. Reach for the cadastral MCP tools (find them via tool search for "cadastre" / "katastar" / "land registry").

Ultra-compressed code review comments. Cuts noise from PR feedback while preserving the actionable signal. Each comment is one line: location, problem, fix. Use when user says "review this PR", "code review", "review the diff", "/review", or invokes /caveman-review. Auto-triggers when reviewing pull requests.

Installs, configures, audits, and operates Agent Package Manager (APM) in repositories. Use when initializing apm.yml, installing or updating packages, validating manifests, managing lockfiles, compiling agent context, browsing MCP servers, setting up runtimes, or packaging resolved context for CI and team distribution. Don't use for writing a single skill by hand, generic package managers like npm or pip, or non-APM agent configuration systems.

Emit and query Vercel Custom Metrics. Use when instrumenting application or business measurements in Vercel Functions, using metric() from @vercel/functions, choosing metric names and attributes, or querying emitted values with vc metrics.

Run CLI commands, tests, and debugging inside the skillshare devcontainer. Use this skill whenever you need to: execute skillshare CLI commands for verification, run Go tests (unit or integration), reproduce bugs, test new features, start the web UI, or perform any operation that requires a Linux environment. All CLI execution MUST happen inside the devcontainer — never run skillshare commands on the host. If you are about to use Bash to run `ss`, `skillshare`, `go test`, or `make test`, stop and use this skill first to ensure correct container execution.

Manages and syncs AI CLI skills across 50+ tools from a single source. Use this skill whenever the user mentions "skillshare", runs skillshare commands, manages skills (install, update, uninstall, sync, audit, check, diff, search), or troubleshoots skill configuration (orphaned symlinks, broken targets, sync issues). Covers both global (~/.config/skillshare/) and project (.skillshare/) modes. Also use when: adding new AI tool targets (Claude, Cursor, Windsurf, etc.), setting target include/exclude filters or copy vs symlink mode, using backup/restore or trash recovery, piping skillshare output to scripts (--json), setting up CI/CD audit pipelines, or building/sharing skill hubs (hub index, hub add).

Update website docs to match recent code changes, cross-validating every flag against source. Use this skill whenever the user asks to: update documentation, sync docs with code, document a new flag or command, fix stale docs, or update the README. This skill covers all website/docs/ categories (commands, reference, understand, how-to, troubleshooting, getting-started) plus the built-in skill description and README. If you just implemented a feature and need to update docs, this is the skill to use. Never manually edit website docs without cross-validating flags against Go source first.