datto_edr_test_connection

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds value by naming the underlying endpoint and the shape of the result (instance host and API version), which is useful beyond the annotations. It doesn't mention auth failure behavior, but that's minor for a read-only probe.

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?

One sentence, front-loaded with the action and immediately followed by the endpoint and return values. 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?

With no output schema, the description helpfully names the return values (host and API version). It's nearly complete for a parameterless probe; only auth-failure or timeout behavior is unmentioned, which is a minor gap given the read-only annotations.

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 the baseline is 4. The description correctly implies no input is needed via the explicit endpoint reference, consistent with the empty 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 (test), the resources (connection and token), the exact endpoint (GET /api/Version), and what is returned. This is clearly distinguishable from siblings like datto_edr_status or datto_edr_agents_list.

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?

The purpose implies usage — verifying credentials before other calls — but the description never states when to use this versus datto_edr_status or datto_edr_raw_request, nor any prerequisites (e.g., that credentials must be configured first). Context is implied rather than explicit.

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