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

Annotations already declare readOnly, idempotent, and non-destructive, so the safety profile is covered. The description adds genuinely useful context the annotations do not: that recording cannot be done here but in the Wavelength app, and that returned items include share links. It stops short of describing pagination or result ordering.

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 short sentences, front-loaded with the resource and scoping, and every clause earns its place: the share-link detail and the recording-in-app note both add information the reader would otherwise lack.

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 single-parameter, read-only list tool with no output schema, the description covers what is returned (walkthroughs plus share links) and where recording happens. It does not mention empty-result or pagination behavior, a minor omission given the tool's simplicity.

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% for the single flow_id parameter, so the schema already documents it. The description implies the flow scoping ('on a Wavelength flow') but adds no format, source, or retrieval detail beyond the schema.

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?

States a specific verb (List) and resource (narrated walkthroughs) and defines the resource inline as 'voice recordings over the flow'. No sibling tool overlaps this purpose, so an agent can select it unambiguously.

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 implied by the scoping phrase 'on a Wavelength flow', which tells the agent it needs a flow context, but there is no explicit when-to-use, when-not-to-use, or named alternative. With no competing walkthrough tool in the sibling list, the absence of routing guidance is a minor gap rather than a critical one.

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