Lazy-loader MCP server for Claude Code skills: search/load on demand instead of preloading the whole library
A lazy router for Claude Code skills: instead of every installed skill costing context every turn, expose the whole library through three small MCP tools — search, load, reindex. Weak/cheap models navigate it fine; that's the point.
Single-file Node MCP server (stdio). One dependency (@modelcontextprotocol/sdk). No database, no embeddings, no background services. Indexing ~185 skills takes ~25ms at startup.
On startup (and on skillreindex) the server walks three roots for SKILL.md files:
Root Label Notes --------- ~/.claude/skills/ active symlinks followed (with cycle guard) ~/.claude/plugins/ plugin plugins/cache/ and plugins/marketplaces/ excluded ~/.claude/skill-vault/ vault see below
Frontmatter name:/description: are parsed (including YAML block scalars like description: -); duplicates dedupe with precedence active plugin vault.
- skillsearch {query, limit?} — ranked {id, name, description, source, path, score}. Token-overlap scoring with query-side stopword filtering (so "make my website load faster" still finds web-perf), whole-query substring boost, and partial name-fragment credit ("website" matches the name web-perf). - skillload {id} — full SKILL.md content plus sibling files (references/, scripts/, …). Accepts ids or names case-insensitively; unknown ids return the 5 closest matches instead of an error. - skillreindex — rescan, returns counts per source.
The real context win: move rarely-used skills from ~/.claude/skills/ into ~/.claude/skill-vault/. The harness stops listing them every turn, but they stay fully discoverable and loadable through the router
From the project README.
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