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

There are no annotations, so the description carries the behavioral transparency burden. 'Check' implies a read-only operationaine; no side effects are mentioned. The note 'Free' adds useful cost information. However, it does not explicitly state that no changes are made, nor disclose any rate limits or access requirements.

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?

The description is extremely concise, containing only two short sentences. The main action is front-loaded, and 'Free.' is an efficient and useful addition. No wasted words or redundant content.

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 with an output schema, the description is complete: it states what is checked (health and configuration) and adds cost behavior. The output schema can document return values, so nothing critical is missing.

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 parametership and schema description coverage is 100% trivially. With no parameters, the baseline is 4. The description adds no parameter-specific detail because none is needed.

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 and resource: 'Check the health and configuration of this service.' This clearly identifies a status/health operation. It does not explicitly differentiate from sibling tools such as goodearth_session_status, but the phrase 'this service' helps distinguish the overall service health from session-specific status.

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 description gives no guidance on when to use this tool versus alternative status-related siblings like goodearth_session_status or goodearth_oracle_about. There are no usage conditions, prerequisites, or exclusions. The agent must infer when this tool is appropriate.

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