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

Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false. The description adds real value beyond that: it warns the operation cannot be undone and mandates user confirmation. It also discloses the return shape ({deleted: id}) despite no output schema.

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?

Three short, front-loaded sentences with no filler. The destructive warning and return value are stated compactly and each sentence 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 destructive tool with no output schema, the description covers purpose, irreversibility, confirmation guidance, and return format. It omits auth/permission requirements and failure modes, but nothing essential to 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?

One parameter with 0% schema description coverage, so the description carries the burden. It clarifies that 'id' identifies an item within the user's private workspace (scope), but adds no format or syntax detail beyond what the schema's type/maxLength already convey. Baseline 3 for adequate but incomplete coverage.

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 (one item of the user's private workspace), and scoping mechanism (by id). This clearly distinguishes it from workspace_get, workspace_list, workspace_save, and workspace_update among its siblings.

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 prerequisite/caution (irreversible, confirm with user first), which strongly implies when to use it. However, it does not name alternatives or state when-not to use it (e.g., moving an item vs. deleting it).

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