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Featured skills

Install our featured skills or any skill from GitHub with Tessl package manager.

82%

anthropics/skills

mcp-builder

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).

tessl install github:anthropics/skills --skill mcp-builder

Top performing skills & tiles

Evaluate skill

Tessl analyses skills and tiles for their impact on agent success.

90%

google-gemini-embeddings

Build RAG systems and semantic search with Gemini embeddings (gemini-embedding-001). 768-3072 dimension vectors, 8 task types, Cloudflare Vectorize integration. Prevents 13 documented errors. Use when: vector search, RAG systems, semantic search, document clustering. Troubleshoot: dimension mismatch, normalization required, batch ordering bug, memory limits, wrong task type, rate limits (100 RPM).

SKILL

90%

google-app-engine

Deploy Python applications to Google App Engine Standard/Flexible. Covers app.yaml configuration, Cloud SQL socket connections, Cloud Storage for static files, scaling settings, and environment variables. Use when: deploying to App Engine, configuring app.yaml, connecting Cloud SQL, setting up static file serving, or troubleshooting 502 errors, cold starts, or memory limits.

SKILL

90%

feedback-mastery

Navigate difficult conversations and deliver constructive feedback using structured frameworks. Covers the Preparation-Delivery-Follow-up model and Situation-Behavior-Impact (SBI) feedback technique. Use when preparing for difficult conversations, giving feedback, or managing conflicts.

SKILL

90%

senior-computer-vision

Computer vision engineering skill for object detection, image segmentation, and visual AI systems. Covers CNN and Vision Transformer architectures, YOLO/Faster R-CNN/DETR detection, Mask R-CNN/SAM segmentation, and production deployment with ONNX/TensorRT. Includes PyTorch, torchvision, Ultralytics, Detectron2, and MMDetection frameworks. Use when building detection pipelines, training custom models, optimizing inference, or deploying vision systems.

SKILL

90%

d3-viz

Creating interactive data visualisations using d3.js. This skill should be used when creating custom charts, graphs, network diagrams, geographic visualisations, or any complex SVG-based data visualisation that requires fine-grained control over visual elements, transitions, or interactions. Use this for bespoke visualisations beyond standard charting libraries, whether in React, Vue, Svelte, vanilla JavaScript, or any other environment.

SKILL

90%

1.41x

tessl/pypi-varname

Dark magics about variable names in python

DOCS

90%

1.30x

tessl/pypi-pydantic

Data validation using Python type hints

DOCS

90%

0.97x

tessl/pypi-azure-data-tables

Microsoft Azure Data Tables Client Library for Python

DOCS

90%

1.14x

tessl/npm-unique-random

Generate random numbers that are consecutively unique

DOCS

90%

1.29x

tessl/npm-testing-library--dom

Simple and complete DOM testing utilities that encourage good testing practices.

DOCS

90%

1.15x

tessl/npm-slate-hyperscript

A hyperscript helper for creating Slate documents with JSX-like syntax.

DOCS

90%

1.10x

tessl/npm-nx--angular

Comprehensive Angular plugin for Nx workspaces providing executors, generators, and utilities for managing Angular applications and libraries.

DOCS

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