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evaluation
This skill provides systematic methods for evaluating LLM outputs using multi-dimensional rubrics, handling non-determinism, and implementing LLM-as-judge patterns to ensure quality in production systems.
tanstack-patterns
This skill provides Grey Haven Studio's patterns for building React 19 applications with the TanStack ecosystem, including file-based routing with TanStack Router, server state management with TanStack Query defaults, and server functions for multi-tenant data fetching.
agent-sdk
This skill provides comprehensive knowledge of the Claude Agent SDK for building production-ready AI agents with automated tool orchestration, context management, and agent loop handling.
assembly-ai-streaming
This skill should be used when working with AssemblyAI’s Speech-to-Text and LLM Gateway APIs, especially for streaming/live transcription, meeting notetakers, and voice agents that need low-latency transcripts and audio analysis.
github-code-review
This skill orchestrates multiple AI agents to review GitHub pull requests. It assigns specialized bots for security, performance, and style checks, then posts findings as PR comments. It integrates with gh CLI to fetch PR data and manage review workflows.
stock-analyzer
Provides comprehensive technical analysis for stocks and ETFs using RSI, MACD, Bollinger Bands, and other indicators. Activates when user requests stock analysis, technical indicators, trading signals, or market data for specific ticker symbols.
extraction-form
Extract study data into a structured table (`papers/extraction_table.csv`) using the protocol’s extraction schema. **Trigger**: extraction form, extraction table, data extraction, 信息提取, 提取表. **Use when**: systematic review 在 screening 后进入 extraction（C3），需要把纳入论文按字段落到 CSV 以支持后续 synthesis。 **Skip if**: 还没有 `papers/screening_log.csv` 或 protocol 未锁定。 **Network**: none. **Guardrail**: 严格按 schema 填字段；不要在此阶段写 narrative synthesis（那是 `synthesis-writer`）。
skill-dispatch
A task routing system that uses GF(3) triadic algebra to dispatch tasks to subagents. It groups skills into validator/coordinator/generator triads that sum to zero modulo 3, ensuring balanced execution. Includes bundle inference, triad execution pipelines, and DuckDB logging.
Defense-in-Depth Validation
Validate at every layer data passes through to make bugs impossible
text-to-speech
Convert text to speech using ElevenLabs voice AI. Use when generating audio from text, creating voiceovers, building voice apps, or synthesizing speech in 70+ languages.
bubble-chart-generator
This skill generates interactive Chart.js bubble chart visualizations for priority matrices and multi-dimensional data analysis. Use this skill when users need to create scatter plots with variable bubble sizes, particularly for 2x2 priority matrices (Impact vs Effort, Risk vs Value, etc.), portfolio analysis, or any visualization comparing items across two dimensions with a third dimension represented by size. The skill creates a complete MicroSim package with HTML, CSS, and documentation.
gemini-image-gen
Provides a wrapper for Google's Gemini 2.5 Flash Image model to generate images from text prompts. Includes helper scripts for API key management, supports multiple aspect ratios, and offers basic image editing and composition features. Documentation covers setup, prompt engineering, and error handling.
astropy
Comprehensive Python library for astronomy and astrophysics. This skill should be used when working with astronomical data including celestial coordinates, physical units, FITS files, cosmological calculations, time systems, tables, world coordinate systems (WCS), and astronomical data analysis. Use when tasks involve coordinate transformations, unit conversions, FITS file manipulation, cosmological distance calculations, time scale conversions, or astronomical data processing.
simon-html-tools
Build single-file HTML tools following Simon Willison's patterns - self-contained HTML+JS+CSS applications optimized for LLM generation, no build step, CDN dependencies. Use when creating browser-based tools, utilities, or demos that should be (1) Self-contained in one HTML file, (2) Easy to distribute and host statically, (3) Quick to prototype with LLMs, (4) Client-side only with no server requirements. Ideal for data visualization, API explorers, format converters, debugging tools, and interactive demos.
git-leak-recovery
This skill provides guidance for recovering secrets or sensitive data that have been removed from Git history through operations like reset or rebase, and then properly cleaning up the repository to ensure the data is completely removed. Use this skill when tasks involve finding lost commits, recovering data from Git reflog, or securely removing sensitive information from Git repositories.
xlsx
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 in spreadsheets, or (5) Recalculating formulas
sqlite-with-gcov
Guidance for compiling SQLite (or similar C projects) with gcov code coverage instrumentation. This skill should be used when tasks involve building software with gcov flags, setting up code coverage instrumentation, or troubleshooting coverage data file generation. Covers gcov path mechanics, build directory considerations, and runtime verification strategies.
evaluate-model
Measure model performance on test datasets. Use when assessing accuracy, precision, recall, and other metrics.
13f-analyzer
Perform various data analysis on SEC 13-F and obtain some insights of fund activities such as number of holdings, AUM, and change of holdings between two quarters.
funsloth-check
Validate datasets for Unsloth fine-tuning. Use when the user wants to check a dataset, analyze tokens, calculate Chinchilla optimality, or prepare data for training.
hf-model-inference
Guidance for setting up HuggingFace model inference services with Flask APIs. This skill applies when downloading HuggingFace models, creating inference endpoints, or building ML model serving APIs. Use for tasks involving transformers library, model caching, and REST API creation for ML models.
gcode-to-text
Extracts hidden or encoded text from GCODE files by analyzing toolpath geometry and coordinate data. This skill should be used when tasks involve decoding text from 3D printing files, recovering embossed or engraved text from GCODE, or CTF-style challenges involving GCODE analysis. Applies to any task requiring geometric reconstruction of text from CNC or 3D printer movement commands.
python-programming
Master Python fundamentals, OOP, data structures, async programming, and production-grade scripting for data engineering
extract-elf
Guidance for extracting and processing data from ELF (Executable and Linkable Format) binary files. This skill should be used when tasks involve parsing ELF headers, reading program segments, extracting memory contents, or converting binary data to structured formats like JSON. Applicable to reverse engineering, binary analysis, and memory dump extraction tasks.