analyse_video

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

No annotations are provided, so the description carries full burden. It fails to disclose any behavioral traits such as side effects (none expected), authentication requirements, rate limits, or whether it modifies data. The description only mentions outputs without transparency on operational aspects.

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?

Two paragraphs plus Args section, front-loaded with key info. Some redundancy in listing URL formats, but overall efficient. Every sentence contributes to understanding.

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's complexity and that an output schema exists (not shown), the description covers core functionality but lacks details on error handling, video availability issues, or input validation. It is adequate but has gaps in completeness.

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?

Schema description coverage is 0%, so the description must add meaning. The Args section provides brief explanations: 'url: YouTube video URL' and 'custom_prompt: Additional analysis instructions (optional)'. The general description also lists supported URL formats. This adds some value but does not fully compensate, e.g., no detail on what 'additional analysis instructions' entails.

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 the verb 'analyse' and the resource 'a single YouTube video', and lists specific outputs (transcript, key takeaways, TLDR, social hook). It distinguishes from siblings by focusing on single video and YouTube platform.

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?

Explicitly states when to use: when user provides a YouTube URL or asks to analyse a YouTube video. Lists supported URL formats. Does not explicitly state when not to use or mention alternatives, but the context implies single-video use only.

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