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.

a-pavithraa/springboot-skills-marketplace

java25-springboot4-reviewer

Comprehensive code review for Java 25 and Spring Boot 4 apps. Use when reviewing, checking, auditing, or analyzing Java/Spring Boot code (files, modules, PRs, or full codebases) for migration risks, Spring Boot 4 best practices, JSpecify null-safety, security vulnerabilities, performance bottlenecks, data access pitfalls, architecture boundaries (DDD/Hexagonal/Spring Modulith), or modern Java 25 usage.

planetscale/database-skills

vitess

Vitess best practices, query optimization, and connection troubleshooting for PlanetScale Vitess databases. Load when working with Vitess databases, sharding, VSchema configuration, keyspace management, or MySQL scaling issues.

planetscale/database-skills

postgres

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

projectbluefin/dakota

subagent-driven-development

Use when executing implementation plans with independent tasks in the current session

a-pavithraa/springboot-skills-marketplace

java25-springboot4-reviewer

planetscale/database-skills

vitess

planetscale/database-skills

postgres

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

projectbluefin/dakota

subagent-driven-development

Use when executing implementation plans with independent tasks in the current session

Top performing skills & tiles

Discover more

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

googleworkspace/cli

recipe-post-mortem-setup

Create a Google Docs post-mortem, schedule a Google Calendar review, and notify via Chat.

SKILL

athal7/dotfiles

pr-stack

Managing stacked/dependent pull requests with GitHub

SKILL

Jamie-BitFlight/claude_skills

conventional-commits

When writing a git commit message. When task completes and changes need committing. When project uses semantic-release, commitizen, git-cliff. When choosing between feat/fix/chore/docs types. When indicating breaking changes. When generating changelogs from commit history.

SKILL

shousper/claude-kit

executing-plans

Use when you have a written implementation plan to execute in a separate session with review checkpoints

SKILL

openclaw/skills

virtualbox

Control and manage VirtualBox virtual machines directly from openclaw. Start, stop, snapshot, clone, configure and monitor VMs using VBoxManage CLI. Supports full lifecycle management including VM creation, network configuration, shared folders, and performance monitoring.

SKILL

haniakrim21/everything-claude-code

agent-evaluation

Testing and benchmarking LLM agents including behavioral testing, capability assessment, reliability metrics, and production monitoring—where even top agents achieve less than 50% on real-world benchmarks Use when: agent testing, agent evaluation, benchmark agents, agent reliability, test agent.

SKILL

qsimeon/openclaw-engaging

sag

ElevenLabs text-to-speech with mac-style say UX.

SKILL

qsimeon/openclaw-engaging

eightctl

Control Eight Sleep pods (status, temperature, alarms, schedules).

SKILL

attilaczudor/Test

sag

ElevenLabs text-to-speech with mac-style say UX.

SKILL

attilaczudor/Test

eightctl

Control Eight Sleep pods (status, temperature, alarms, schedules).

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

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API development

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From our partners

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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

elevenlabs/skills

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 70+ languages.

SKILL

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

hashicorp/agent-skills

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

pubnub/pubnub-app-developer

Build real-time applications with PubNub pub/sub messaging

SKILLS

anthropics/skills

skill-creator

Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, 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

huggingface/skills

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