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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, closed-world), so the bar is lower. The description usefully adds the workspace scoping ('this Debriefing workspace tracks') and the returned field set, though it does not discuss pagination or empty-workspace behavior.

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 tight sentences, front-loaded with the action and scope, followed by the high-value routing hint about competitor_id. No filler.

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?

An output schema exists, so return details needn't be spelled out, and annotations cover safety. For a zero-param list tool, the description provides purpose, scope, key return fields, and the canonical for tools like get_competitor.

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?

Zero parameters, so baseline is 4. The description correctly implies no filtering input is required, consistent with an empty schema, and adds value by naming the output fields an agent will rely on.

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 (Lists) and resource (competitors this Debriefing workspace tracks), and enumerates the returned fields (id, name, website, category). It is clearly distinguishable from siblings like get_competitor (single) and add_competitor (mutation).

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?

Explicitly says to 'Call it first to get the competitor_id that other tools take,' which gives a clear when-to-use context and a downstream dependency on siblings. It does not name specific alternative tools or state when not to use it, keeping it short of a 5.

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