MCP App StoreMCP App StoreDiagnose provides a disciplined, repeatable workflow for finding and fixing difficult bugs and regressions. It teaches agents to build a fast, deterministic feedback loop (tests, HTTP scripts, or headless browsers), reproduce the failure, generate ranked falsifiable hypotheses, instrument to test those hypotheses, implement fixes with regression tests where possible, and perform cleanup and a post‑mortem. The emphasis is on measurable signals and automation so debugging scales.
Use this skill when a user reports a bug, says something is broken, describes incorrect output, or reports a performance regression. Also use it when reproduction is flaky — the skill explains how to raise reproduction rates and when to stop and ask for more artifacts (logs, HARs, recordings, or production access).
Well-suited for code-focused assistants and developer-facing agents (Claude Code, Copilot/Codex-style agents, GPT-based coding copilots) that can run scripts, tests, and debugging harnesses.
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Development Worktree
Create an isolated git worktree for feature work, auto-run project setup, and verify a clean test baseline before development.
ds-fix — data-science mid-analysis fixer
Orchestrates diagnosis and targeted fixes mid-analysis: diagnose root cause, apply fixes with output-first verification, and update project learnings.
Scikit-learn (Classical ML reference)
Comprehensive scikit-learn guidance for classification, regression, clustering, preprocessing, model evaluation, and production-ready ML pipelines.
Full Stack Builder
End-to-end builder that scaffolds, implements, tests, and optionally deploys web and API applications from a natural-language specification.
Tmux Bridge
Give an agent controlled access to a local tmux terminal bridge so it can run shell commands, capture output, and manage sessions on the user's machine.
Cursor Hello World Tutorial
A concise 10-minute hands-on tutorial demonstrating Cursor's Tab completion, Chat, Inline Edit, and Composer features for getting started quickly.
Supabase SDK Patterns (TypeScript & Python)
Production-ready patterns for using Supabase clients in TypeScript and Python: client initialization, typed queries, auth, realtime, storage, RPC, and error-han
Replit — Advanced Troubleshooting
Step-by-step diagnostics and debugging techniques for deep Replit issues: Nix build failures, container crash loops, memory leaks, and platform vs app isolation
