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

Annotations already declare destructiveHint=true, readOnlyHint=false, and idempotentHint=false, so the safety profile is covered. The description adds a genuine behavioral precondition not present in the schema: expectedVersion must equal the memory's current revision, implying an optimistic-concurrency failure mode on stale versions. It still omits what happens on version mismatch and any permission requirements.

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 sentence with the action and the concurrency precondition front-loaded, and no filler. Every clause carries information the caller needs.

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 destructive operation the description covers the essentials (target and version guard) and annotations carry reversibility, but with 6 parameters at 50% coverage and no output schema, the role of path, workspace_id, and the idempotency/retry parameters is left entirely to the schema.

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 50%. The description explains the two required parameters (id as the target, expectedVersion as the current revision), but adds nothing for path, workspace_id, operation_id, or idempotency_key, and path has no schema description at all despite being a listed property on a delete-by-id tool.

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 (Delete), resource (a memory), and keying method (by id) within the connected Pathrule workspace, which cleanly separates it from pathrule_delete_rule and pathrule_delete_skill. An agent can identify the tool's job without opening the schema.

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?

No when-to-use or when-not-to-use guidance is given, and no alternatives are named despite an obvious sibling set (delete_rule, delete_skill, update_memory). The agent must infer that this is the deletion path for memories and that update_memory is the non-destructive alternative.

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