CtrlK
BlogDocsLog inGet started
Tessl Logo

The package manager for agent skills and context

Versioned, evaluated skills and context for agentic software development

npx tessl search
Evaluate skill

Featured skills

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

planetscale/database-skills

mysql

Plan and review MySQL/InnoDB schema, indexing, query tuning, transactions, and operations. Use when creating or modifying MySQL tables, indexes, or queries; diagnosing slow/locking behavior; planning migrations; or troubleshooting replication and connection issues. Load when using a MySQL database.

Top performing skills & tiles

Discover more

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

tessl-labs/skill-optimizer

Improves your SKILL.md using tessl skill review plus validation and context. Reads skill bundle (SKILL.md + related files), validates syntax, explains WHY changes help, catches mistakes. Use when improving your own skill, skill file, skill description, reviewing skill quality, skill scoring, making your skill better, or learning the skill rubric.

SKILLS

langgenius/dify

frontend-testing

Generate Vitest + React Testing Library tests for Dify frontend components, hooks, and utilities. Triggers on testing, spec files, coverage, Vitest, RTL, unit tests, integration tests, or write/review test requests.

SKILL

Can't find what you're looking for? Evaluate a missing skill, or if you're looking for agent context for an open source dependency, request a tile.

Browse by category

View all categories

Find exactly what you need, organized by use case.

Testing & QA

Security & compliance

Documentation generation

Debugging & error handling

API development

Web design

Database management

From our partners

Become a partner

Enterprise-ready skills from trusted publishers.

anthropics/skills

webapp-testing

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

SKILL

pubnub/pubnub-app-developer

Build real-time applications with PubNub pub/sub messaging

SKILLS