Add dynamic MCP server dependency loading (port from skillsdotnet)#58
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Port the skill dependency resolution pattern from skillsdotnet's SkillCatalog to TypeScript. Skills can now declare MCP server dependencies in frontmatter (e.g. dependencies: [everything-server]), and a client-side SkillCatalog fires an onDependenciesRequired callback when loading a skill with dependencies, enabling the host to connect required servers on demand. SDK changes: - Parse dependencies in discoverSkills() and parseSkillFrontmatter() - Expose dependencies in resource descriptions via (requires: ...) suffix - Add SkillDependencyRequest type and SkillCatalog class - Include <dependencies> element in XML generation New files: - catalog.ts: SkillCatalog with addClient, removeClient, loadSkill, onDependenciesRequired callback, getLoadSkillToolDefinition - explore-everything sample skill with dependencies: [everything-server] - dynamic-server-loading example (TypeScript port of DynamicMcpServers) Tests: 106 passing (44 new) covering catalog, dependency parsing, XML generation, and smoke tests. Co-Authored-By: Peder Holdgaard Pedersen <127606677+PederHP@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Use path.resolve with __dirname instead of URL.pathname to avoid the /C:/... double-prefix issue on Windows. Co-Authored-By: Peder Holdgaard Pedersen <127606677+PederHP@users.noreply.github.com> Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
dependencies: [server-name])SkillCatalogclass (TypeScript port of skillsdotnet's SkillCatalog) discovers skills, caches frontmatter context, and fires anonDependenciesRequiredcallback when loading a skill with dependencies — enabling the host to connect required servers on demanddiscoverSkills()parses dependencies, resource descriptions include(requires: ...)suffixparseSkillFrontmatter()andlistSkillResources()extract dependencies;buildSkillsSummary()and XML generators include dependency infoNew files
typescript/sdk/src/catalog.ts—SkillCatalogwithaddClient,removeClient,loadSkill,onDependenciesRequired,getLoadSkillToolDefinitionexamples/sample-skills/explore-everything/SKILL.md— sample skill withdependencies: [everything-server]examples/dynamic-server-loading/typescript/— end-to-end demo (TypeScript port of skillsdotnet's DynamicMcpServers sample)Test plan
onDependenciesRequiredcallback → dynamically connects@modelcontextprotocol/server-everythingvia npx → 11 tools discovered🤖 Generated with Claude Code
Co-authored with @PederHP (skillsdotnet)