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

No annotations are provided, so the description carries the full behavioral burden and does so richly: idempotent semantics (already_absent=true, no error), the AMBIGUOUS_ROUTE error with matching_route_ids, synchronous execution (no task_id), and a verification step via the map legend.

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?

Dense but front-loaded: the 'When' clause comes first, followed by prerequisites, exclusions, and error behavior. Every sentence adds value, though the '[Tier 2 — Delete Route]' prefix and the trailing 'Scenarios: RT-010' are metadata noise.

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?

An output schema exists, yet the description still covers the meaningful return signals (already_absent, AMBIGUOUS_ROUTE). Combined with prerequisites and verification guidance, an agent has everything needed to invoke and interpret the call.

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 0%, so the description must compensate. It explains route_id (or exact unique label), the preferred map_session_id vs fallback ts_handle, but guidance_handle is never mentioned, leaving one of four parameters undocumented.

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+resource (delete/drop a whole route) and explicitly scopes what it is not: removing a single stop. It names the sibling that handles that case (calculate_route), so an agent can distinguish the two without opening schemas.

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?

Provides explicit 'When' triggers with example utterances, prerequisites (map_session_id preferred else ts_handle, plus route_id or a unique label), and a clear exclusion routing single-stop removal to calculate_route. Alternatives and edge cases are enumerated.

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