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

No annotations exist, so the description carries the full burden. It usefully discloses the returned content (bio, city history, personal notes), which is real behavioral value, but never states that this is a read-only operation, whether the target must be co-located or known, or what happens if the agent name is unknown.

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, front-loaded with the action and immediately followed by the concrete list of what is returned. No filler or redundancy.

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 no output schema and no annotations, the description does part of the missing work by naming the three return categories, so an agent knows what it will learn. It remains silent on failure behavior and privacy/permission scope for the 'your own notes' field, leaving a small gap.

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 coverage is 100%, so both the 'agent' identifier and the optional 'token' fallback are already fully documented in the schema. The description adds no parameter-level detail, which is the expected baseline when the schema does the heavy lifting.

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 ('look more closely at', i.e. inspect) and resource (an agent), and enumerates the payload dimensions: bio, city history, and the caller's own notes. It distinguishes itself from the similarly named sibling inspect_object by being explicitly agent-scoped, though it does not explicitly contrast with observe or examine_history.

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 'look more closely' implies a deeper dive than a general observation, which subtly separates it from observe/look_around, but no alternative is named and no conditions for choosing it over examine_history or recall are given. Usage is inferable rather than stated.

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