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

Annotations already declare destructiveHint=true and readOnlyHint=false, so the description does not need to restate that this mutates state. It adds minimal context by specifying that the target is an AI memory entry and that deletion is scoped by ID, but it does not disclose permanence, cascading effects, or failure behavior. This is acceptable for a simple delete with destructive annotation, but not rich.

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 states the action, resource, and targeting mechanism with no filler or redundancy. The description is front-loaded and every word 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?

For a single-parameter delete operation with schema coverage, a destructive annotation, and no output schema, the description is nearly sufficient. It could briefly note permanence or what happens on success/failure, but the tool is simple enough that the current description together with the annotation covers most relevant context.

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%, and the id parameter is already described as 'ID of the memory to delete'. The description repeats the ID-based targeting without adding format, source, validation, or behavior details, so it does not meaningfully increase understanding beyond the schema. 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?

The description uses a specific verb ('Delete'), a clear resource ('AI memory entry'), and a scope qualifier ('by ID'), which immediately distinguishes this tool from the many delete_* siblings. An agent can tell exactly what the tool operates on without needing to inspect the schema or compare with other tools.

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 provides no guidance on when to choose this tool over alternatives, when not to use it, or how it relates to related memory tools like add_user_memory or get_user_memories. The only usage clue is the imperative verb and resource, which forces the agent to infer context rather than being told.

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