owner

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

With no annotations, the description carries the full behavioral burden. It does disclose a non-obvious domain trait — ownership can be inherited from a directory lease above the path — which the schema cannot express. However, it never states that this is a read-only lookup, nor what happens when no owner exists.

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 front-loaded clause with zero waste, and the parenthetical carries real semantic weight. Phrasing it as a question rather than an imperative statement slightly reduces actionability.

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?

An output schema exists, so return-value explanation is not needed, and the tool is structurally simple (one required string param). What remains missing is routing against the lease-management siblings and error/empty-result behavior, leaving the definition adequate but thin.

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 0% for the single 'path' parameter, so the description must compensate. It does add meaning by explaining that the path's owner may be resolved through an ancestor directory lease, which clarifies how the path is interpreted. It still omits path format (absolute/relative) and whether the path must already exist.

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 is phrased as a question ('Who holds this path...') rather than a verb+resource statement, but the resource (path ownership) and the retrieval intent are inferable. It distinguishes itself from siblings like claim/release by being a query, though it never explicitly says it returns the current holder.

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?

There is no guidance on when to use this versus claim, release, accept, or ack, all of which plausibly touch the same lease/path domain. The agent must infer usage entirely from the one-line question.

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