JsonFabrica health check

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

With no annotations provided, the description carries the behavioral disclosure burden. It reveals the HTTP call type, the lack of authentication requirements, and the practical purpose of validating endpoint reachability. It does not describe response shape or error behavior, but for a simple health check the disclosure is reasonably complete.

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 convey the endpoint, authentication status, and intended use with no filler. The most important detail, the HTTP call, is front-loaded.

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, no-output-schema health check, the description provides everything an agent needs: the endpoint, authentication requirement, and the exact verification scenario. 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 tool has zero parameters, so there are no parameter semantics to clarify. The schema already fully covers the empty parameter list, and the description adds context about the endpoint and environment variable without needing to explain parameters.

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 names the exact HTTP method and resource ('GET /health'), and the scope is unmistakably a health check for the JsonFabrica gateway. It clearly stands apart from sibling tools, which all deal with templates, sequences, batches, or usage rather than connectivity.

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 explicitly states when to use it: to verify JSONFABRICA_API_URL points at a reachable gateway. It also notes that no authentication is required, giving useful operational context. It does not enumerate when not to use it or mention alternatives, but no sibling competes directly for this purpose.

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