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agent-skills-ts-sdk is a tooling package for the AgentSkills SKILL.md format. It parses and validates skill files, builds prompt blocks, and applies patch operations. It lives in this monorepo, but it is adjacent to the WebMCP runtime packages rather than part of the browser runtime stack.

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When to use this package

  • You are reading, validating, or transforming SKILL.md files.
  • You need prompt construction or patch utilities around the AgentSkills format.
  • You want to reuse the file-format tooling outside a WebMCP runtime.

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When not to use this package

  • You need navigator.modelContext in the browser. Use the WebMCP runtime packages.
  • You are looking for browser transport or relay behavior. That is separate tooling.

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Where it sits in the package graph

This package stands on its own in the tooling layer. It shares the monorepo but does not depend on the WebMCP runtime stack.

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First step

Parse a SKILL.md file and inspect its extracted frontmatter and markdown body. The reference page documents parsing, validation, prompt generation, and patch helpers.

Reference

Parsing APIs, validation output, prompt helpers, and patch utilities.

Packages index

Browse the rest of the packages in this monorepo.

What is WebMCP?

Background on the browser runtime packages that share the repo.

WebMCP vs MCP

Conceptual background on the MCP side of the project.