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

Annotations declare destructiveHint=true and readOnlyHint=false, but the description does not explain what destructive side effects occur (e.g., does traversal mutate anything? does it create a temporary graph?). The openWorldHint=true is also not elaborated. The description adds the subject-direction and predicate-filter behavior, but the destructive nature is a significant unexplained gap.

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 sentences with no filler. The core behavior is front-loaded, the optional filter is stated, and the example is concrete. Every sentence earns its place.

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 complete for a simple traversal tool, but the destructiveHint=true annotation raises a red flag that is not addressed. Without an output schema, the agent also doesn't know what the traversal returns (e.g., list of ids? objects?). The example helps, but the destructive behavior and return shape are 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?

Schema description coverage is 100%, so the schema already documents both parameters. The description adds the subject-direction meaning and the hasMember example, which is helpful but not extensive. Baseline 3 is appropriate.

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 ('traverse') and resource ('one-hop... from an entity'), and clarifies the directionality ('where it is the subject'). It also gives a concrete example ('Pass a collection's id with predicate hasMember to list its members'), which distinguishes it from sibling tools like sim_edges and sim_link.

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 explains the core usage context: one-hop traversal from a subject, optional predicate filtering, and a concrete example. It does not explicitly name alternatives or exclusions, but the example and scope make the intended use clear.

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