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

Annotations already declare destructiveHint=true and readOnlyHint=false, so the safety profile is covered; the description nonetheless contributes the non-obvious auth requirement (pre-provisioned MLAIEL bearer scope 'read_public', custom auth rather than OAuth), which an agent cannot derive from structured fields. It stops short of saying what happens if the id is absent or whether deletion is recoverable, so a 4 rather than 5.

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 tight sentences with no filler, and the ownership/scope constraint is front-loaded ahead of the auth note. Efficient, though the auth sentence is bare-bones enough that it could carry slightly more precision.

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 one-parameter tool with no output schema, the description covers scope and authentication but leaves key gaps: the meaning/source of publicId, the effect of a nonexistent or already-deleted id, and whether the deletion is reversible given idempotentHint=false. Adequate but incomplete for a mutation.

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?

There is one required parameter with 0% schema description coverage, so the description carries the burden — yet it never mentions publicId, what it identifies, or where the agent obtains it. Only the schema's uuid format hints at the value type; the description adds nothing here.

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 ('Delete ... public-source memory reference') and scopes it with 'only your own', which distinguishes it from delete_own_content/delete_own_project and from the read siblings get_own_memory and list_own_memories. The phrase 'memory reference' is slightly ambiguous about whether a memory object or a pointer is removed, keeping it short of a 5.

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?

There is an implicit constraint ('only your own') but no explicit when-to-use or when-not guidance, and no routing to alternatives such as delete_own_content for non-memory resources or get_own_memory to verify first. The agent must infer the right context for a destructive call.

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