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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds substantive context the annotations cannot: that annotations carry timestamps, that some comments are pinned to a screen location, and that page edits are included as a distinct item type. It stops short of noting ordering, volume, or pagination.

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?

One long but well-ordered sentence leads with what the data is and builds outward to item types, then ends with the get_moment handoff. Every clause carries information; only the enumerated drawing shapes are mildly redundant.

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?

For a simple one-parameter read tool with no output schema, the description gives a good inventory of return content and the time dimension, which is what an agent needs to decide to call it. The absence of any note on ordering, result size, or empty-recording behavior is the remaining gap.

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 100%, so the single 'recording' parameter's accepted forms (share/embed/dashboard URL with or without ?t=, or a recording id) are already fully documented. The description adds nothing about that parameter, which is the expected baseline when the schema does the work.

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 enumerates exactly what the resource contains — drawings (arrows, circles, boxes, notes), the element each points at, reporter page edits, and team comments, some position-pinned. That clearly separates it from siblings like get_transcript and get_console. It is a noun phrase rather than a verb+resource, but the resource is unmistakable.

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 only explicit routing is 'Pass a time to get_moment to see it,' which covers one downstream use. There is no statement of when to call this instead of get_steps, get_frames, or get_guide when assembling a full picture of a recording, so the agent must infer.

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