Skill authoring

writing-skills

Use when creating new skills, editing existing skills, or verifying skills work before deployment

• No scripts
• Works offline

mcp-builder

Anthropic

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).

• Plugin
• Needs network

agent-platform-skill-registry

Google Cloud

Interact with the Gemini Enterprise Agent Platform Skill Registry to create and search for available skills. Use this skill to enable agents to register functionality or discover new capabilities.

• Bundles scripts
• Needs network

altitude-horizon-framework

Dean Peters

Understand the PM-to-Director transition through altitude and horizon thinking. Use when diagnosing scope, time-horizon, or leadership-level gaps.

• No scripts
• Works offline

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).

• Bundles scripts
• Needs network

skill-creator

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.

• Bundles scripts
• Works offline

skill-authoring-workflow

Dean Peters

Turn raw PM content into a compliant, publish-ready skill. Use when creating or updating a repo skill without breaking standards.

• No scripts

context-fundamentals

This skill should be used to explain or reason about the foundational concepts of context engineering: what context is, the anatomy of a context window, how attention mechanics work, the U-shaped attention curve, why context quality matters more than quantity, and the mental models needed to…

• Bundles scripts
• Works offline

tool-design

This skill should be used for the tool-interface layer of an agent system specifically: writing tool descriptions agents can route on, designing tool schemas and response formats, naming conventions, actionable error recovery messages, MCP server design, tool-set consolidation, and deciding when…

• Bundles scripts
• Works offline

cypress-author

Cypress

Creates, updates, and fixes Cypress tests (E2E/end-to-end and component tests). Use when the user asks to create tests, add tests, write tests, update tests, test this file/component, new spec, or fix a failing or flaky test. Apply even when the user does not say 'Cypress' (e.g. 'create tests for…

• No scripts

skill-creator

Anthropic

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…

• Plugin
• Works offline

modem-dev/skills

Modem Dev

Rules for writing code that coding agents (and humans) can find through plain-text search: distinctive names, precise types, comments where search lands, and concept-named modules.

• No scripts