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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint=false and destructiveHint=false, so the safety profile is fully covered. The description adds one useful behavioral detail — that results come "with links" — plus the fact that the catalog is limited to free apps. It says nothing about result ordering, pagination, or what a link entry contains.

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 sentence that front-loads the verb and resource before the category enumeration. The trailing "…" ellipses are a mild waste — they add vagueness rather than information — but the sentence otherwise earns its place.

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, non-destructive catalog read with no output schema, the definition covers what the tool returns at a high level (free apps, categorized, with links) and the annotations cover safety. The remaining gap is the optional audience filter's default behavior, which an agent would need to guess.

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 0% for the single optional `audience` parameter, so the description must carry meaning. It does partially: the personal vs. clinic split mirrors the enum, letting an agent guess what those values select. But it never mentions the parameter, never explains the `all` value, and never states the default when the parameter is omitted.

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?

"Lists MedDroid's free apps" gives a specific verb plus resource, and the parenthetical enumeration (medicine reminder, BP & sugar diary, EMR, lab, pharmacy, billing, teleconsult) makes the scope concrete. It never names a sibling such as meddroid_info, so the distinction from the other MedDroid tool is left to inference rather than stated.

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: an agent can infer this is the discovery/catalog tool for MedDroid products. There is no explicit when-to-use statement, no when-not-to-use, and no pointer to alternatives for someone wanting info about MedDroid itself rather than its apps.

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