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

Annotations already declare readOnlyHint/idempotentHint/destructiveHint, so the safety profile is covered. The description adds non-obvious behavior: it verifies the recording belongs to the authenticated user (an implicit auth scoping/error condition) and enumerates the returned step fields, which the structured data does not provide.

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?

Three sentences, front-loaded with the core action, then the auth constraint, then the return contents. With no output schema, the return-value sentence earns its place rather than repeating structured data.

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?

Because there is no output schema, the description usefully summarizes the returned metadata and ordered steps. It omits what happens when the recording is not owned by the user (error vs empty) and any pagination or size caveats, leaving a minor gap for a read tool.

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?

There is a single parameter with 100% schema description coverage, and that description already points to flow_recording_list as the ID source. The description adds no syntax or format detail beyond the schema, so the baseline 3 applies.

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 gives a specific verb (get) and resource (a flow recording with all its steps), and the schema note 'from flow_recording_list' implicitly separates it from the list sibling. It does not explicitly name which sibling to use instead, but the single-record scope is unambiguous.

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?

Usage is only implied: fetch one recording when you have its ID. There is no statement of when to prefer this over flow_recording_list, flow_recording_replay, or flow_recording_action, nor any prerequisite beyond ownership verification.

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