douyin_inspect_video

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the description is not responsible for safety disclosure. It adds useful context by specifying that it opens a page, checks title, keyword relevance, and comment availability, and reinforces the read-only nature with '只读'. No contradictions found.

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, concise sentence that front-loads the action and key checks. There is no redundant or filler content; every word contributes to understanding the tool's function.

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?

The tool has no output schema, so the description should ideally explain what the agent can expect as a result. It does not mention return values, how results are presented, or whether the tool simply opens the page or returns a verification report. The description covers the tool's purpose but leaves significant operational gaps.

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%, and the description does not mention videoUrl or keyword at all. Although the schema provides type and constraints, the description fails to add any semantic meaning about what these parameters represent or how they relate to the inspection task. This is a significant gap given the low coverage.

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 action (open a Douyin video detail page) and the specific checks performed (title, keyword relevance, comment section availability). It distinguishes this tool from siblings like douyin_search_videos or douyin_get_campaign_status by focusing on video inspection.

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?

The purpose implies when to use this tool (verifying video details against a keyword), but it does not explicitly mention alternatives or exclusions. No reference is made to sibling tools or when not to use it, so the guidance is implied rather than explicit.

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