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by io.github.CDCStream
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twitch_profile

Twitch channel — handle + displayName, socials[], topClips, schedule preview, stream only when live (1 credit). Costs 1 credit. Empty results and failures are never charged. Pass cache=true for a free 24h cache hit (default always fresh).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
urlYesTwitch channel URL or username, e.g. https://www.twitch.tv/shroud. The URL platform must match this endpoint's platform. Do not pass cross-platform URLs, e.g. YouTube to TikTok, Instagram to Facebook, LinkedIn to X/Twitter, or Pinterest to Rumble.
cacheNoSet true to serve from the response cache (default TTL). Default false — always fetch fresh. Prefer cacheMaxAge when you need 1d–30d freshness control.
cacheMaxAgeNoMax age of a cached response: 1d, 3d, 7d, 14d, or 30d. When set, enables caching with that TTL.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • changedInput schema / properties / cache / description
      Previous value: -"Set true to serve from the response cache (default TTL). Default false — always fetch fresh. Prefer cacheMaxAge when you need 1d–30d freshness control. Envelope includes cached + cachedAt on hits."New value: +"Set true to serve from the response cache (default TTL). Default false — always fetch fresh. Prefer cacheMaxAge when you need 1d–30d freshness control."
    • changedInput schema / properties / cacheMaxAge / description
      Previous value: -"Max age of a cached response: 1d, 3d, 7d, 14d, or 30d. When set, enables caching with that TTL. Envelope: cached + cachedAt."New value: +"Max age of a cached response: 1d, 3d, 7d, 14d, or 30d. When set, enables caching with that TTL."
  2. Changed3 schema fields changed
    • changedInput schema / properties / cache / description
      Previous value: -"Set true to serve from the 24h response cache. Default false — always fetch fresh data."New value: +"Set true to serve from the response cache (default TTL). Default false — always fetch fresh. Prefer cacheMaxAge when you need 1d–30d freshness control. Envelope includes cached + cachedAt on hits."
    • addedInput schema / properties / cacheMaxAge
      Added value: +{
+  "description": "Max age of a cached response: 1d, 3d, 7d, 14d, or 30d. When set, enables caching with that TTL. Envelope: cached + cachedAt.",
+  "type": "string"
+}
    • changedInput schema / properties / url / description
      Previous value: -"Twitch channel URL or username, e.g. https://www.twitch.tv/shroud. The URL platform must match this tool's platform. Do not pass cross-platform URLs, e.g. YouTube to TikTok, Instagram to Facebook, LinkedIn to X/Twitter, or Pinterest to Rumble."New value: +"Twitch channel URL or username, e.g. https://www.twitch.tv/shroud. The URL platform must match this endpoint's platform. Do not pass cross-platform URLs, e.g. YouTube to TikTok, Instagram to Facebook, LinkedIn to X/Twitter, or Pinterest to Rumble."
  3. Changed1 schema field changed
    • changedInput schema / properties / cache / description
      Previous value: -"Responses are cached for 24 hours by default. Set false to bypass the cache and always fetch fresh data (default true)."New value: +"Set true to serve from the 24h response cache. Default false — always fetch fresh data."
  4. Changed1 schema field changed
    • addedInput schema / properties / cache
      Added value: +{
+  "description": "Responses are cached for 24 hours by default. Set false to bypass the cache and always fetch fresh data (default true).",
+  "type": "boolean"
+}
  5. Added

TDQS

A3.8/5.0
Behavior4/5

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

With no annotations, the description carries the behavioral burden and provides useful disclosure: the call costs 1 credit, empty results and failures are never charged, stream data is only present when the channel is live, and cache=true gives a free 24h cache hit while the default is always fresh. It does not cover auth or rate limits, but the key operational quirks are disclosed.

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?

The description is short and front-loaded with the resource and return fields. There is minor redundancy between '(1 credit)' and 'Costs 1 credit,' but otherwise each clause earns its place.

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 3-parameter tool with no output schema and no annotations, the description provides enough context to call it correctly: return fields, cost, caching behavior, failure billing, and the live-only stream field. It could explain the exact format of fields or error behavior, but nothing critical is missing.

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

Parameters4/5

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

Schema description coverage is 100%, so the baseline is 3. The description adds value by specifying that cache=true is free and provides a 24h cache hit, and it reinforces the always-fresh default. It does not discuss cacheMaxAge, but the schema already fully documents that parameter.

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

Purpose4/5

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

The description identifies the resource as a Twitch channel and enumerates the specific returned data: handle, displayName, socials[], topClips, schedule preview, and stream. This helps distinguish it from sibling tools like twitch_clip or twitch_user_videos, though it lacks an explicit verb such as 'fetch' or 'get'.

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

Usage Guidelines3/5

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

The usage context is implied: this is the tool to call for a Twitch channel profile rather than clips, schedule, or videos. However, it never names alternatives or states when not to use this tool, and 'stream only when live' reads as a data availability condition rather than a routing rule.

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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