m3_connection_test

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

With no annotations, the description carries the behavioral burden and does well by listing three concrete checks the call performs. It implies a read-only diagnostic via 'Test' and 'verifies'; the only minor gap is not specifying the exact success/failure return shape.

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 with the primary verb and resource front-loaded, followed by three concrete verification targets. Every phrase adds information and there is 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?

For a zero-parameter health-check tool this is largely complete: an agent knows exactly what will be tested and how it differs from the sibling operations. The definition could add the response/result format, but the absence is minor for such a simple diagnostic.

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?

The input schema has zero parameters, so the baseline is 4 and there are no parameter semantics to document. The description's mention of auth, endpoint, and agenda access clarifies what the no-arg call is actually validating.

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?

The description uses a specific verb ('Test'), names the exact resource ('Money S3 API connection'), and enumerates what is verified: OAuth2 auth, endpoint reachability, and agenda access. This clearly distinguishes it from the many sibling data-operation tools.

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 tool's intended use as a connectivity/auth diagnostic is clear from 'verifies OAuth2 auth, endpoint reachability, and agenda access.' It does not explicitly state when not to use it or name alternatives, but there are no equivalent sibling connection tests.

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