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The package manager for agent skills and context

Versioned, evaluated skills and context for agentic software development

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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).

Top performing skills & tiles

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

58%

behavioral-modes

AI operational modes (brainstorm, implement, debug, review, teach, ship, orchestrate). Use to adapt behavior based on task type.

SKILL

58%

1.07x

tessl/npm-gatsby-plugin-sharp

Wrapper of the Sharp image manipulation library for Gatsby plugins

DOCS

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