# Skill of Skills

> Quality-ranked, cross-platform directory of AI coding skills, plugins and MCP servers.

- name: io.911fund.skills/directory
- version: 3.11.0
- connection class: unknown (unknown)
- trust: 71/100
- quality: 96/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.911fund.skills%2Fdirectory
- tools: https://api.protogrid.dev/v1/servers/io.911fund.skills%2Fdirectory/tools

**Not classified yet.** The remote endpoints have not been probed successfully, or the listing has nothing to connect to.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "directory": {
      "type": "http",
      "url": "https://skills.911fund.io/api/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 28
- freshness: 85
- provenance: 85
- drivers: +repository +dns-namespace +website -unreachable(1 failures) ~updated-33d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 96/100 (good)

### protocol: 88 (weight 25)

- pass `protocol.modern`: supports 2026-07-28 (server/discover)
- pass `protocol.stateless`: answers without a session
- pass `protocol.transport`: streamable HTTP
- warn `protocol.list_ttl`: tools/list declares ttlMs 0, so clients re-fetch it on every use

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 6 of 6 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,112 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 4 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 6, about 1,112 tokens to load them all
- tool set hash: ea6918b7c1233af69f0e8370ab8dea69
- tools last changed: 2026-10-14T21:16:10.664Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.911fund.skills/directory.svg)](https://protogrid.dev/servers/io.911fund.skills/directory)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-14 `get_collection` changed (outputSchema)
- 2026-10-14 `compare_tools` changed (outputSchema)
- 2026-10-14 `get_skill` changed (outputSchema)
- 2026-10-14 `search_skills` changed (inputSchema, outputSchema)

Full history: https://api.protogrid.dev/v1/servers/io.911fund.skills%2Fdirectory/changes

## Remotes

- https://skills.911fund.io/api/mcp (streamable-http, auth none, reachable false, uptime30d 0.9391304)

## Packages

_none_

## Tools (6)

- `compare_tools`: Side-by-side quality profiles for 2–5 tools by slug. Same fields as get_skill; ordering follows the request, not rank.
- `demand_pulse`: Public, k-anonymous demand signal from the directory: trending searches, most-saved and most-installed tools. Aggregates only — sourced from ≥5 distinct anonymous sessions per entry.
- `get_collection`: Quality-ranked tools inside one curated collection. Critical-risk tools are excluded by default (risk_filter); every result carries risk_level and risk_reasons.
- `get_skill`: Full quality profile for one tool by slug (slugs come from search_skills / get_collection): score breakdown, structural signals, risk level and reasons, platforms, repo link. Direct lookups return any active tool regardless of risk — the risk assessment is part of the answer, not a filter here.
- `list_collections`: The curated buyer-intent collections (e.g. mcp-servers, testing-qa, browser-automation). Use get_collection for the ranked tools inside one.
- `search_skills`: Full-text search over the Skill of Skills directory (AI coding skills, plugins, MCP servers across Claude Code, Cursor, Codex, Windsurf, Cline). Results are ranked by the quality-first composite score, not popularity; when no tool matches every term, the closest partial matches are returned instead (match_mode: "any"), most relevant first. Critical-risk tools are excluded by default (risk_filter); every result carries risk_level and risk_reasons. Scores are evidence, not endorsements.