Confirm emergency access

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

Annotations only declare readOnly=false, destructive=false and openWorld=true; the description adds the non-obvious side effect that the grantor's vault key is transmitted encrypted to the grantee, which is exactly the kind of security-relevant behavior structured fields do not convey. It stops short of saying what state the grant moves to or whether the action is reversible.

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 with no filler, and the actor ('grantor') and effect are front-loaded. It is terse to the point of leaving required gaps, but nothing in it is wasted.

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 non-read-only mutation with no output schema, three undocumented optional parameters, and a crowded emergency-access sibling family, the description omits required inputs, preconditions, result state, and caller identity. Only the cryptographic side effect is covered, leaving the definition materially incomplete.

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 0% across four parameters, and the description explains none of them. It never mentions emer_id (the sole required argument) or what form/params/json_body carry, so an agent gets no help mapping intent to arguments.

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 ('confirms') and resource ('the grantee' of emergency access), plus the mechanical effect of delivering the grantor's encrypted vault key. An agent can tell this is a confirmation step in the emergency-access flow, though it is not explicitly distinguished from close siblings like approve_emergency_access or emergency_access_accept_invite.

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 statement of when this step should be invoked versus the other emergency-access tools (initiate, approve, accept_invite, takeover, reject), nor any precondition such as which party must call it or what state the request must be in. The agent must infer the call ordering from the name alone.

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