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

With no annotations provided, the description carries the full burden. It discloses that the tool performs a health check and provides a manifest, but it does not state whether it is read-only, what the output structure is, or whether there are side effects. The behavior is under-specified for a tool that could return sensitive capability information.

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, front-loaded sentence states the primary action ('Health check') and the secondary purpose ('manifest'). There is no waste, and the structure is easy to scan. It earns its place fully.

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?

The description is minimal but functional. It does not explain what the manifest contains (e.g., a list of tools, capabilities) or what the health check response looks like, though an output schema exists. For a simple tool, this is adequate but leaves room for richer context, especially given the number of sibling tools the manifest might enumerate.

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 is nothing to describe beyond the schema. The description adds no parameter meaning, but per the rubric, a baseline of 4 is appropriate for 0-parameter tools since no semantic gap exists.

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 states a specific verb ('Health check') and a resource ('good_honker'), and adds a unique second purpose ('manifest of what good_honker can do'). This clearly differentiates it from sibling tools that perform domain-specific lookups (e.g., search_shows, venue_info). The purpose is unambiguous and not a tautology.

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 implies usage for health checks and capability discovery but does not explicitly state when to use it vs. alternatives. There are no exclusions or prerequisites mentioned. For a simple tool with no parameters, the implied context is adequate, but it leaves the agent to infer that this is the go-to connectivity test.

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