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

Annotations already declare destructiveHint=true and idempotentHint=true, so the safety profile is carried structurally; the description reinforces permanence with "for good" but adds nothing about error behavior for a missing secret or whether any reference to the deleted secret breaks. The trailing "Free." gestures at a cost/quota trait not present in the annotations, though it is too terse to be actionable.

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 short sentences, front-loaded with the destructive action. "Free." is a fragment whose meaning (no cost? no quota?) is not self-evident, which slightly undercuts an otherwise waste-free definition.

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 one-parameter destructive tool, the key facts (permanence, no read of return values needed since there is no output schema) are mostly covered by annotations. Missing are what happens on a nonexistent name and whether deletion breaks anything referencing the secret — meaningful gaps given destructiveness.

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 a single required `name` parameter and schema description coverage is 100%, including a pattern and examples ("Shopify admin", "SUPPLIER_API_KEY"). The description adds no parameter meaning at all, so the baseline of 3 for high schema coverage 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 ("Remove a secret from the vault") with the permanence qualifier "for good", which separates it from vault_save's overwrite semantics. It does not name any sibling (vault_get, vault_list, vault_save, vault_generate_password), so differentiation is left to inference from the name.

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 explicit when-to-use or when-not-to-use guidance, and no alternative is named — an agent cannot tell from the text whether to delete and re-save a rotated secret or simply call vault_save. "For good" vaguely signals this is not the overwrite path, but that is all the guidance provided.

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