Agent skills for Windsurf (legacy)

Complete guide for selling on eBay — auction and fixed-price strategies, listing optimization, eBay SEO, shipping setup, seller ratings…

When to activate: Echo web framework, routing, middleware, request binding, WebSocket, graceful shutdown in Echo

Run a user interview — produce an interview guide and synthesize the output into an actionable insight report.

INVOKE FIRST for any LangChain / LangGraph / Deep Agents agent building project before consulting other skills or writing any agent code.

Debug Ecto constraint violations - trace triggers, check migrations, find duplicate data.

Use when querying data with Ecto.Query DSL including where clauses, joins, aggregates, preloading, and query composition.

Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development…

Use when completing tasks, implementing major features, or before merging to verify work meets requirements - dispatches code-reviewer…

Use when creating new skills, editing existing skills, or verifying skills work before deployment - applies TDD to process documentation…

The html-to-markdown converter handles numerous edge cases and adversarial inputs with robust validation, error recovery, and fallback…

Audit existing CDN and edge configuration — find cache misses, missing headers, and performance gaps.

Automates publication-ready scientific figure generation and OPJU project management using local OriginLab Origin/OriginPro on Windows.

Structural editor that proposes cuts, reorganization, and simplification while preserving comprehension.

Manage editorial workflows for newsrooms and publications.

Downloads education datasets from configured mirror sources (parquet/CSV) with local Polars filtering.

This skill should be used when the user asks to "search Google Scholar", "find academic papers", "scholar search", "lookup papers", "find…

Applies when writing or reviewing C++ code.

Captures and persists architectural principles, project conventions, and key learnings as lightweight documentation files.

Problem-solving strategies for eigenvalues in linear algebra

Implement Einstein AI for Salesforce Commerce — Einstein Recommendations (product-to-product, user-to-product, trending), predictive sort…

Sign and verify EIP-712 typed structured data using Nethereum (.NET).