channel_info

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

No annotations are provided, so the description carries the full burden of disclosing behavioral traits. It mentions the tool operates on the 'authorized channel', implying auth requirements, but does not specify side effects, rate limits, or what happens if the channel is unauthorized. For a tool with no annotations, this is insufficient.

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

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

The description is a single, clear sentence that efficiently conveys the tool's purpose. It is appropriately sized and front-loaded. While it could potentially list the specific fields more explicitly, it is concise without being under-specified.

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

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

Given the tool has zero parameters and no annotations, the description is moderately complete. It explains what the tool does and mentions key outputs (profile, statistics, uploads playlist id). However, without an output schema, it should detail the return structure more thoroughly to avoid ambiguity about what 'statistics' includes.

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

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

The input schema has zero parameters, so the description does not need to add parameter-level detail. It adds value by describing the return data (profile, statistics, uploads playlist id), which goes beyond the empty schema. With 0 parameters, the baseline is 4, and the description meets it well.

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

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

The description clearly states a verb ('Get') and resource ('authorized channel's profile, statistics, and uploads playlist id'). It distinguishes from siblings like 'channel_report' or 'list_videos' by focusing on the channel's own data and including the uploads playlist id. However, it could be more specific about what 'profile' and 'statistics' include, which would enhance clarity further.

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

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

No guidance is provided on when to use this tool versus alternatives such as 'channel_report' or 'get_video'. The description implicitly suggests it is used to retrieve channel info, but there is no explicit context for usage or exclusions like 'use channel_report for comprehensive analytics instead'.

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