exchange_agent_pairing

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

With no annotations, the description carries the full behavioral burden. It communicates that the tool returns an agent credential that must be stored securely, which is useful, but it does not disclose whether the request secret is consumed, single-use, or what happens on failure.

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?

The description is two short sentences with no filler. The core action and timing are front-loaded, and the second sentence adds a meaningful security-handling instruction.

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 simple one-parameter tool with an output schema, the description covers the essential workflow: when to call it and how to handle the result. It is slightly incomplete because it does not explicitly state where the request_secret comes from or whether the secret is reusable.

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%, so the description must compensate for the undocumented request_secret parameter. It refers to 'a private pairing request secret' but does not specify its origin, format, or lifecycle, leaving the agent to infer that it likely comes from a prior pairing step.

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?

The description uses a specific verb ('Exchange') with a clear resource ('a private pairing request secret') and states the outcome ('Store the returned agent credential'). It is distinct from the sibling start_agent_pairing, which implies initiation rather than finalization.

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?

The phrase 'after the person approves' gives an explicit precondition for when this tool should be used. It does not name alternatives or exclusions, but the workflow timing is clear enough that an agent can infer when to call it.

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