scan_inventory

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

No annotations are provided, so description carries the burden. It discloses API usage ('Uses the YouTube Data API') and quota cost ('~1,200 quota units'), which is useful behavioral context. It also states the scan scope (all playlists, all items, check video status), though it doesn't explain parameter effects.

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?

Four sentences total, front-loaded with the action and followed by usage and cost. No wasted words; each sentence adds value.

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?

Covers purpose, primary usage, and API cost, but lacks any parameter semantics and doesn't mention what db_path is for. With an output schema present, return details are covered, but the param gap makes it incomplete.

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 coverage is 0%, and description does not mention db_path or read_only. The tool's parameters are completely unexplained, leaving a significant gap.

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 uses a specific verb ('Run a full inventory scan') and resource (all playlists, all items, video status). It distinguishes itself as the primary data-collection command from siblings by stating 'Run this first before any curation operations.'

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?

Provides clear timing guidance: 'Run this first before any curation operations' and labels itself 'the primary data-collection command.' It does not explicitly mention when not to use it or alternatives, but this is clear enough for a first-step tool.

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