mlx

Comprehensive Claude Code knowledge base — plugins, hooks, skills, agents, MCP, channels, headless mode, permissions, settings, and all extensibility features. Use when building, configuring, debugging, or extending Claude Code.

Use when building a skill, creating a SKILL.md, packaging a workflow, making a slash command, or asked "how do I make a skill". Scaffolds the folder, generates SKILL.md from a template, validates against spec. Produces a complete ready-to-deploy skill folder: scripts, references, assets. Also use to review or improve an existing skill.

Statistical analysis, hypothesis testing, A/B testing, cohort analysis, segmentation, trend detection, business metrics, pre-delivery validation, and data visualization. Use when the user asks to "analyze this data", "run a statistical test", "compare groups", "find trends", "do A/B test analysis", "segment customers", "calculate KPIs", "validate this analysis", "check my work", "sanity check", "review my numbers", "make a chart", "create a dashboard", "plot the data", "visualize results", or mentions hypothesis testing, cohort analysis, business analytics, data validation, bar charts, line charts, heatmaps, scatter plots, or data storytelling.

Autonomous time-budget experiment loop. Modify a training script, train for a fixed wall-clock budget, evaluate, record, repeat. Inspired by karpathy/autoresearch. Use for overnight architecture search, systematic hyperparameter sweeps, or any iterative model improvement workflow.

Context engineering for building production LLM applications: context window management, degradation patterns, optimization strategies, memory system selection, multi-agent architecture, filesystem context patterns, and tool design principles. Use when building LLM apps, RAG pipelines, AI agents, multi-agent systems, or when designing memory, tool APIs, or context strategies for any language model application.

Explore, clean, and engineer datasets end-to-end: statistical profiling, distribution checks, missing value analysis, duplicate detection, outlier removal, type fixing, encoding, create features, encode categories, transform columns, add rolling windows, build interaction terms, and feature engineering. Supports pandas, polars, and PySpark. Use when the user wants to explore data, profile columns, understand a dataset, clean data, handle missing values, remove duplicates, fix data types, preprocess a dataset before modeling, create features, encode categories, transform columns, add rolling windows, build interaction terms, or do feature engineering.

Detect data drift, concept drift, and model performance degradation in production. Uses PSI, KS-test, and chi-squared for statistical drift, plus evidently and nannyml for automated reports. Use when monitoring a deployed model or comparing training vs production data distributions.

Systematic evaluation of ML models, experiments, and AI system outputs. Multi-dimensional rubrics, LLM-as-judge, bias detection, and structured comparison frameworks. Use when the user asks to "evaluate model performance", "compare models", "build evaluation rubrics", "assess output quality", "detect model bias", or mentions evaluation frameworks, LLM-as-judge, model comparison, or quality assessment.

Explain model predictions with SHAP, LIME, integrated gradients, and permutation importance. Generates summary plots, waterfall charts, and force plots. Use when debugging predictions, auditing for bias, or communicating model behavior to stakeholders.

Fine-tune language models with LoRA, QLoRA, or full fine-tuning. Covers unsloth (4x memory reduction), PEFT, trl SFTTrainer, DPO, instruction tuning with chat templates, dataset preparation, and evaluation. Use when fine-tuning any HuggingFace model on custom data.

Interactive ML education with 3 university-grade courses (CS229 Stanford, Applied ML Python, ML Engineering), 36+ structured lessons, decision frameworks, and interview prep. Supports study, quiz, explain, design, debug, and progress modes. Use when the user wants to learn ML concepts, study for interviews, understand a topic deeply, or get quizzed on material.

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).

Extract content from YouTube videos and generate podcasts, video overviews, quizzes, flashcards, reports, and slide decks from research papers using Google NotebookLM. Use when the user wants to extract a YouTube transcript, analyze a video, turn a paper into a podcast, generate an audio summary, create a quiz from a paper, make slides from research, or automate any NotebookLM workflow.

On-demand ML/data science library expert. Use when the user asks how to use any function, class, or method from NumPy, Pandas, scikit-learn, Matplotlib, TensorFlow, Keras, PyTorch, Seaborn, SciPy, statsmodels, XGBoost, LightGBM, Hugging Face Transformers, OpenCV, NLTK, spaCy, Plotly, Dask, PySpark, SQLAlchemy, or Jupyter. Fetches and synthesizes official API docs, parameter reference, and working code examples. Also use when the user asks "how do I do X in pandas/numpy/torch/sklearn", needs to understand a deep learning layer or training loop, asks about NLP pipelines, computer vision transforms, statistical tests, SQL ORM patterns, or big data ops.

Create, clean, organize, optimize, and convert Jupyter notebooks. Build new notebooks from scratch with proper cell structure, cell IDs, and Colab compatibility. Extract reusable functions, add documentation, generate requirements.txt, and convert to scripts. Use when the user wants to create a notebook, clean a notebook, organize cells, extract functions, convert to script, or optimize a notebook for production.

Search, fetch, download, and extract ML/AI research papers from 7 free academic sources. Find and download ML datasets from 5 free sources (HuggingFace, OpenML, UCI, Papers with Code, Kaggle). Review a paper, critique methodology, assess reproducibility, evaluate experimental design. Convert research papers, articles, or technical documents into working code prototypes. Use when the user wants to find papers, search arxiv, get citations, download a PDF, extract text from a paper, find/download datasets, review/critique a research paper, implement a paper, prototype an algorithm, or convert research to working code.

Compress, deploy, and serve trained ML models in production. Covers model compression (quantization, pruning, distillation, ONNX export), inference APIs, containerization, CI/CD pipelines, monitoring, health endpoints, model versioning, and reproducibility packaging. Use when the user has a trained model and wants to reduce its size, deploy it, serve it, containerize it, build an inference API, set up monitoring, write a model card, create a CI/CD pipeline, or package for reproducibility.

Train ML models and iterate systematically with experiment tracking. Full coverage of supervised learning: Naive Bayes, KNN, Discriminant Analysis (LDA/QDA), SVM/SVR, Decision Trees, Ensemble Methods (Random Forest, XGBoost, LightGBM), GLM (Poisson, Gamma, Tweedie), Gaussian Process, Ridge/Lasso/ElasticNet, and Neural Networks (PyTorch). Covers data splitting, cross-validation, metrics, persistence, hyperparameter search, and TSV-based experiment tracking. Use when the user wants to train a model, fit a classifier or regressor, evaluate performance, do cross-validation, run experiments, tune hyperparameters, or compare runs.