Tessl • The package manager for agent skills

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.

anthropics/skills

pdf

Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs apart, rotating pages, adding watermarks, creating new PDFs, filling PDF forms, encrypting/decrypting PDFs, extracting images, and OCR on scanned PDFs to make them searchable. If the user mentions a .pdf file or asks to produce one, use this skill.

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.

a-pavithraa/springboot-skills-marketplace

springboot-migration

Migrate Spring Boot projects to version 4.0 with Java 25, including Spring Modulith 2.0 and Testcontainers 2.x upgrades. Use when user requests upgrading Spring Boot, migrating to Java 25, updating dependencies to Spring Boot 4, mentions Jackson 3 migration, asks about starter renames (web→webmvc, aop→aspectj), fixing test annotations (@MockBean→@MockitoBean), or needs help with Spring Modulith 2.0 or Testcontainers 2.x compatibility. Analyzes codebase for migration issues and guides through changes with specific file references.

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.

anthropics/skills

pdf

Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs apart, rotating pages, adding watermarks, creating new PDFs, filling PDF forms, encrypting/decrypting PDFs, extracting images, and OCR on scanned PDFs to make them searchable. If the user mentions a .pdf file or asks to produce one, use this skill.

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.

a-pavithraa/springboot-skills-marketplace

springboot-migration

Migrate Spring Boot projects to version 4.0 with Java 25, including Spring Modulith 2.0 and Testcontainers 2.x upgrades. Use when user requests upgrading Spring Boot, migrating to Java 25, updating dependencies to Spring Boot 4, mentions Jackson 3 migration, asks about starter renames (web→webmvc, aop→aspectj), fixing test annotations (@MockBean→@MockitoBean), or needs help with Spring Modulith 2.0 or Testcontainers 2.x compatibility. Analyzes codebase for migration issues and guides through changes with specific file references.

Top performing skills & tiles

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

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Pending

tessl/maven-org-apache-spark--spark-avro-2-11

Apache Spark SQL connector for reading and writing Avro data with comprehensive serialization capabilities

DOCS

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Pending

tessl/maven-org-apache-flink--flink-mesos-2-11

Apache Flink Mesos integration module that provides resource manager implementation for running Flink clusters on Apache Mesos.

DOCS

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Pending

tessl/maven-org-apache-spark--spark-sql-2-13

Distributed SQL query engine for Apache Spark with DataFrame/Dataset APIs, comprehensive SQL functions, streaming capabilities, and data source connectors

DOCS

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Pending

tessl/maven-org-apache-spark--spark-sql-kafka-0-10-2-12

Kafka 0.10+ Source for Structured Streaming providing Kafka integration for Apache Spark's streaming and batch processing

DOCS

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Pending

tessl/maven-org-apache-flink--flink-test-utils-2-10

Testing utilities for Apache Flink stream processing framework providing test environments, base classes and sample data

DOCS

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Pending

tessl/maven-org-apache-flink--flink-table-uber-blink-2-12

Comprehensive Table/SQL distribution for Apache Flink with Blink planner for optimized table processing in both batch and streaming modes.

DOCS

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Pending

tessl/maven-org-apache-flink--flink-tweet-inputformat-2-11

Apache Flink input format library for parsing Twitter JSON data into structured Tweet objects for stream processing applications

DOCS

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Pending

tessl/maven-org-apache-flink--flink-tests-2-10

Comprehensive integration test suite for Apache Flink stream processing framework providing test utilities, base classes, and infrastructure for validating fault tolerance, checkpointing, and streaming operations.

DOCS

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Pending

tessl/maven-org-apache-flink--flink-test-utils-2-12

Test utilities library for Apache Flink applications providing streaming environments, test data sources, result collection mechanisms, and metrics testing utilities.

DOCS

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Pending

tessl/maven-org-apache-flink--flink-table-runtime-blink-2-11

Runtime classes required by a task manager for execution of table programs in Apache Flink's Blink planner

DOCS

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Pending

tessl/maven-org-apache-flink--flink-table-planner-2-12

Apache Flink Table Planner - translates and optimizes table programs into Flink pipelines

DOCS

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Pending

tessl/maven-org-apache-flink--flink-table-planner-2-11

Flink Table Planner connects Table/SQL API and runtime, responsible for translating and optimizing table programs into Flink pipelines.

DOCS

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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Enterprise-ready skills from trusted publishers.

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.

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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.

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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

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

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

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

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