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

Adds substantial context beyond the annotations: no undo tool exists, an absent ID is a no-op so a success response does not prove prior existence, and deletion is confined to the user's STEM account (not original conversations or other users). The destructive/idempotent hints are already in annotations, so this is additive rather than restated, though it does not cover link cascade details or auth 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?

Four sentences that are front-loaded with the action and each carry distinct information (trigger, prerequisite, return semantics, scope exclusions). Slightly dense but no sentence is filler.

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?

With a single parameter fully documented and no output schema, the description covers what the return contains ('ok and the requested numeric ID'), edge-case behavior (no-op on absent ID), and scope boundaries. Nothing needed for correct invocation 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 description coverage is 100% and the id parameter already documents that it comes from remember or recall and must not be guessed. The description reinforces the recall-before-delete workflow but adds no format or resolution detail beyond the schema, so 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 ('Delete one saved memory and its attached links') plus the scope ('from the authenticated user's STEM account'), which distinguishes it cleanly from recall, remember, and link within the sibling set.

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?

Gives an explicit trigger ('when the user requests that deletion') and a required prerequisite workflow ('identify the intended memory with recall before deleting'), effectively naming recall as the identification alternative. It also bounds scope by listing what this does not delete, so the agent knows when another tool or assistant is responsible.

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