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Expert in ADVPL/TLPP development for the TOTVS Protheus ecosystem, focusing on code writing and review, entry points (conventional and MVC), REST APIs, SQL queries, table access, OO classes, MVC structure, and reports.

A Python library for working with geospatial vector data like shapefiles, GeoJSON, and GeoPackage. It's used for spatial analysis, geometric operations, coordinate transformations, and tasks involving reading, writing, or analyzing vector geographic data, supporting PostGIS and interactive maps.

Extracts your chat history and attachments from macOS IM clients into structured files. It decrypts SQLCipher v4 databases, handles zstd-compressed messages, and supports Chinese OCR for analyzing your chat data.

"把脉" is an Expert Pulse Check for product decisions. It triggers automatically when Claude presents multiple options for major product decisions or manually by the user.

Generates Excalidraw hand-drawn diagrams from natural language. Use to create various diagrams like flowcharts, mind maps, architecture, ER, or sequence diagrams, outputting .excalidraw JSON files.

Postgres performance optimization and best practices from Supabase. Use this skill when writing, reviewing, or optimizing Postgres queries, schema designs, or database configurations.

Comprehensive Drizzle ORM documentation in markdown, covering schema definition, queries, migrations, database connections, integrations, column types, relations, transactions, and framework usage.

Quick reference for common SQL patterns, CTEs, window functions, and indexing strategies. Triggers on: sql patterns, cte example, window functions, sql join, index strategy, pagination sql.

Query the Sequence Read Archive (SRA), retrieve scientific publications, and analyze genomics metadata using the SRAgent toolkit. Supports accession conversion (GSE→SRX→SRR), BigQuery metadata queries, manuscript downloads from multiple sources, and scRNA-seq technology identification. Use when working with SRA/GEO datasets, finding publications, or analyzing single-cell sequencing experiments.

Write, optimize, and debug T-SQL queries for Microsoft SQL Server. Covers CTEs, window functions, PIVOT, MERGE, APPLY operators, execution plan analysis, indexing strategies, and stored procedures. Use when working with SQL Server, T-SQL scripts, .sql files, stored procedures, query optimization, or database performance tuning.

Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization i

Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, ....