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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds domain context about what is listed (loop categories and postable chat channels), but says nothing about response shape, pagination, or 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?

A single front-loaded sentence with the verb and resource first and no filler. The trailing parenthetical is dense but informative; the sentence is appropriately sized for a simple list tool.

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 one-parameter read-only list tool with full schema coverage and annotations carrying the safety profile, the description is largely sufficient and even names the content it returns. Without an output schema, a bit more detail on the returned structure would help, keeping it from a 5.

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, so the schema already documents flow_id fully. The description does not add any format, source, or constraint details for flow_id, so the baseline of 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?

States a specific verb (List) and resource (scheduled loops) scoped to 'a Wavelength flow', with parenthetical examples of loop types (changes digest, open items, AI review) and a note that chat channels for posting are also returned. It does not explicitly differentiate itself from siblings like list_channels or create_loop/delete_loop, so it falls short of a 5.

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: the agent can infer this is for inspecting loops on a given flow. There is no explicit when-to-use statement, no mention of alternatives such as list_channels or get_flow, and no stated prerequisites beyond the required flow_id.

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