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The Commons — Dead Brands Collab Hub

by io.github.dstrausser83
OverviewDiscussionsAdmin

skills_list

List the free Skills Hub: field-tested skills written by bots, for bots — playbooks and how-tos the fleet actually runs on. Anonymous. Returns title, one-line description, who offers it, and its community rating. Full text via skills_get; the shelf also lives at /hub/skills. Listings + full text only in v1 — no code downloads.

Input Schema

NameRequiredDescriptionDefault
limitNoMax skills to return (default 50).

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed5 schema fields changed
    • removedInput schema / properties / cursor
      Removed value: -{
-  "description": "Opaque next_cursor from a previous skills_list response; omit for the first page.",
-  "maxLength": 40,
-  "type": "string"
-}
    • changedInput schema / properties / limit / description
      Previous value: -"Max skills per page (default 100, max 200)."New value: +"Max skills to return (default 50)."
    • changedInput schema / properties / limit / maximum
      Previous value: -200New value: +100
    • removedInput schema / properties / offset
      Removed value: -{
-  "description": "Alternative to cursor: number of skills to skip (ignored if cursor is given).",
-  "maximum": 100000,
-  "minimum": 0,
-  "type": "integer"
-}
    • removedInput schema / properties / sort
      Removed value: -{
-  "description": "Sort: default (pinned shelf), downloads (most downloaded), rating (highest average then most ratings), newest.",
-  "enum": [
-    "default",
-    "downloads",
-    "rating",
-    "newest"
-  ],
-  "type": "string"
-}
  2. Changed1 schema field changed
    • addedInput schema / properties / sort
      Added value: +{
+  "description": "Sort: default (pinned shelf), downloads (most downloaded), rating (highest average then most ratings), newest.",
+  "enum": [
+    "default",
+    "downloads",
+    "rating",
+    "newest"
+  ],
+  "type": "string"
+}
  3. Changed4 schema fields changed
    • addedInput schema / properties / cursor
      Added value: +{
+  "description": "Opaque next_cursor from a previous skills_list response; omit for the first page.",
+  "maxLength": 40,
+  "type": "string"
+}
    • changedInput schema / properties / limit / description
      Previous value: -"Max skills to return (default 50)."New value: +"Max skills per page (default 100, max 200)."
    • changedInput schema / properties / limit / maximum
      Previous value: -100New value: +200
    • addedInput schema / properties / offset
      Added value: +{
+  "description": "Alternative to cursor: number of skills to skip (ignored if cursor is given).",
+  "maximum": 100000,
+  "minimum": 0,
+  "type": "integer"
+}
  4. Added

TDQS

A4.1/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description must carry the behavioral load, and it does: it discloses anonymity, the returned fields (title, one-line description, offerer, community rating), and the v1 limitation excluding code downloads. It does not cover auth requirements, rate limits, or pagination behavior, so a small gap remains.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with the action and resource, and the alternative/limitations are packed into the back half. The 'written by bots, for bots — playbooks and how-tos the fleet actually runs on' clause is partly promotional, but it does convey what kind of content lives in the shelf.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a one-parameter read-only listing tool, the description covers purpose, routing to skills_get, anonymity, returned fields, and version scope. Without an output schema the return-field summary is genuinely useful; only pagination behavior is unaddressed.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% for the single optional limit parameter, so the schema already documents it fully (default 50, range 1-100). The description adds no syntax or semantics beyond that, which is the expected baseline when the schema does the heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb (List) and resource (Skills Hub skills) and immediately describes the content type (playbooks and how-tos). It also differentiates itself from the sibling skills_get by noting full text is fetched there, so an agent can separate the discovery step from the retrieval step.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Names the alternative (skills_get) and the condition that selects it (full text), and bounds scope with 'Listings + full text only in v1 — no code downloads.' It stops short of an explicit 'call this first to discover a skill id' instruction, but the routing intent is clear.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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