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.

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planetscale/database-skills

postgres

PostgreSQL best practices, query optimization, connection troubleshooting, and performance improvement. Load when working with Postgres databases.

100%

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.

89%

hashicorp/agent-skills

run-acceptance-tests

Guide for running acceptance tests for a Terraform provider. Use this when asked to run an acceptance test or to run a test with the prefix `TestAcc`.

90%

elevenlabs/skills

speech-to-text

Transcribe audio to text using ElevenLabs Scribe. Use when converting audio/video to text, generating subtitles, transcribing meetings, or processing spoken content.

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planetscale/database-skills

postgres

PostgreSQL best practices, query optimization, connection troubleshooting, and performance improvement. Load when working with Postgres databases.

100%

anthropics/skills

webapp-testing

89%

hashicorp/agent-skills

run-acceptance-tests

Guide for running acceptance tests for a Terraform provider. Use this when asked to run an acceptance test or to run a test with the prefix `TestAcc`.

90%

elevenlabs/skills

speech-to-text

Transcribe audio to text using ElevenLabs Scribe. Use when converting audio/video to text, generating subtitles, transcribing meetings, or processing spoken content.

Top performing skills & tiles

Discover more

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

19%

gitignore-generator

Gitignore Generator - Auto-activating skill for DevOps Basics. Triggers on: gitignore generator, gitignore generator Part of the DevOps Basics skill category.

SKILL

19%

github-actions-starter

Github Actions Starter - Auto-activating skill for DevOps Basics. Triggers on: github actions starter, github actions starter Part of the DevOps Basics skill category.

SKILL

19%

dockerfile-generator

Dockerfile Generator - Auto-activating skill for DevOps Basics. Triggers on: dockerfile generator, dockerfile generator Part of the DevOps Basics skill category.

SKILL

19%

docker-compose-creator

Docker Compose Creator - Auto-activating skill for DevOps Basics. Triggers on: docker compose creator, docker compose creator Part of the DevOps Basics skill category.

SKILL

19%

changelog-creator

Changelog Creator - Auto-activating skill for DevOps Basics. Triggers on: changelog creator, changelog creator Part of the DevOps Basics skill category.

SKILL

Invalid

self-documentation

Explain Claude Code features, capabilities, and tools. Use for questions like "how do skills work?", "what can you do?", "what's the difference between X and Y?", "should I use a skill or slash command?". Also handles recording observations about undocumented behaviors. Invoke with /self-documentation or ask naturally.

SKILL

Invalid

prd-writing

Create comprehensive PRDs (Product Requirements Documents) and product one-pagers. Use when the user wants to write a PRD, product brief, one-pager, kick-off doc, or needs help defining product requirements. Triggers: write a prd, one-pager, product brief, kick-off doc, help me write a PRD for, define product requirements.

SKILL

Invalid

session-export

Export Claude Code session transcripts from JSONL logs to readable text format. Use when the user asks to export a session, save a transcript, create session archives, or convert session logs to readable format. Triggers on phrases like "export session", "save transcript", "session to text".

SKILL

Invalid

spec-writing

Interview users to refine rough ideas into comprehensive, implementation-ready specifications. Use when the user wants to write a spec, refine requirements, flesh out a feature idea, or asks to be interviewed about a project. Triggers: help me spec, interview me, refine this spec, flesh out, requirements gathering, write a spec for, spec out, write a spec, create a spec, spec this out.

SKILL

Invalid

mcp-github

Call GitHub MCP tools via mcporter CLI — 40 tools for PRs, issues, repos, code search, releases, and more. Use for: 'search code across repos', 'read files from another branch', 'review PR diff', 'cross-repo queries', 'push files to remote'. Requires GITHUB_TOKEN env var.

SKILL

Invalid

mcp-linear

Call Linear MCP tools via mcporter CLI — issues, projects, teams, comments, cycles, milestones, and more. Use for: 'create Linear issue', 'list my issues', 'update issue status', 'check sprint progress', 'add comment to ticket'. Replaces native Linear MCP plugin to save context window.

SKILL

Invalid

mcp-playwright

Browser automation via Playwright MCP — navigate, interact, screenshot, and inspect web pages headlessly. Use for: 'scrape this page', 'fill out a web form', 'take a screenshot of a URL', 'check if a site is up'. Use when no browser session exists.

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.

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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.

90%

webapp-testing

SKILL

93%

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 74+ languages.

SKILL

84%

↑ 1.79x

cisco/software-security

A software security skill that integrates with Project CodeGuard to help AI coding agents write secure code and prevent common vulnerabilities. Use this skill when writing, reviewing, or modifying code to ensure secure-by-default practices are followed.

SKILLS

86%

terraform-stacks

Comprehensive guide for working with HashiCorp Terraform Stacks. Use when creating, modifying, or validating Terraform Stack configurations (.tfcomponent.hcl, .tfdeploy.hcl files), working with stack components and deployments from local modules, public registry, or private registry sources, managing multi-region or multi-environment infrastructure, or troubleshooting Terraform Stacks syntax and structure.

SKILL

88%

↑ 1.28x

pubnub/pubnub-app-developer

Build real-time applications with PubNub pub/sub messaging

SKILLS

93%

skill-creator

Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, update or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.

SKILL

69%

hugging-face-tool-builder

Use this skill when the user wants to build tool/scripts or achieve a task where using data from the Hugging Face API would help. This is especially useful when chaining or combining API calls or the task will be repeated/automated. This Skill creates a reusable script to fetch, enrich or process data.

SKILL