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

With no annotations, the description carries the full behavioral burden and does it reasonably well: it discloses what is returned (center piece plus connected pieces with bridge descriptions) and explains the from_center/from_neighbor lens semantics. It omits permission/rate-limit details, but for an inherently read-only exploration op that gap is minor.

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?

Three sentences, front-loaded with the core action before the return-shape detail. Every sentence contributes, though the middle sentence is dense and could be tightened.

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 two-parameter read-only traversal with full schema coverage and no output schema, the description covers purpose, return contents, and the meaning of the bridge sentences. It is largely complete; only routing against sibling tools 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?

Schema coverage is 100%, so the schema already documents 'id' and 'min_strength' with range and default. The phrase 'Follow high-strength connections' loosely corroborates min_strength but adds no syntax or interpretation beyond what the schema provides. Baseline 3 applies.

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?

States a specific verb and resource: 'Explore the graph neighborhood around a piece.' It clarifies the unit of traversal (a piece) and the return shape, but does not distinguish itself from siblings like get_connections or navigate, which plausibly overlap.

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?

'Follow high-strength connections to navigate by structural similarity' implies the intended use case but never states when to choose this over get_connections, navigate, or trace_field. Usage is implied rather than explicit, and no exclusions are given.

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