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  "canonical_url": "https://gtmstacker.com/registry/tool/toolhive-catalog/",
  "title": "ToolHive Registry Catalog",
  "description": "Open-source registry catalog of MCP servers from Stacklok. Demonstrates twin catalog streams — servers for executable components and skills for reusable prompt workflows — with an allowedTools array that bounds which tools a skill may invoke.",
  "category": "mcp-agents",
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  "open_source": "yes",
  "self_hostable": "unknown",
  "pricing_model": "free",
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  "aliases": [],
  "alternatives": [],
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  "last_verified": "2026-09-04",
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  "chunks": [
    {
      "index": 0,
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      "est_tokens": 45,
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    },
    {
      "index": 1,
      "heading_path": [
        null,
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      ],
      "est_tokens": 141,
      "text": "ToolHive's catalog is a working example of a registry that maintains **twin catalog streams**: `servers` for executable MCP components and `skills` for reusable prompt workflows.\n\nEach registered skill pairs a `skill.json` config with an adjacent `SKILL.md` payload. The config declares ownership namespace, semantic version, license, and an **`allowedTools`** array listing the exact tool names the skill may invoke. Restricting tool access inside the skill definition prevents agent privilege escalation and keeps execution bounded within declared parameters."
    },
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      "heading_path": [
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      "est_tokens": 146,
      "text": "registered skill pairs a `skill.json` config with an adjacent `SKILL.md` payload. The config declares ownership namespace, semantic version, license, and an **`allowedTools`** array listing the exact tool names the skill may invoke. Restricting tool access inside the skill definition prevents agent privilege escalation and keeps execution bounded within declared parameters.\n\nThis registry borrows the twin-stream idea: `tool` entries describe executables, while a bundled Agent Skill (`consume-registry`) describes how to *use* the registry itself, with a bounded `allowedTools`."
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        "datePublished": "2026-09-03T09:10:00Z",
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}