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

With zero annotations, the description must disclose behavior itself, but it does not say that this is a state-creating operation, whether re-registration creates duplicate sessions, what permissions are needed, or how the 'capability proofs' request is fulfilled. Only the vague implication of a write ('Create') is present.

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?

It is a single front-loaded sentence with no filler, which is structurally clean. The brevity, however, reflects under-specification rather than efficient communication, since key invocation details are absent.

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?

This is a session-creating mutation tool with no annotations, no output schema, and two undocumented parameters. The description does not cover the resulting session identifier, proof request flow, or how it relates to the lease/proof sibling tools, leaving an agent without enough to invoke it confidently.

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 both parameters, yet it explains neither. 'Capability proofs' loosely hints at declared_capabilities, but the accepted string format is unstated, and the 'label' parameter is never mentioned at all.

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?

Names a specific verb ('Create') and resource ('chat worker session'), plus a secondary action ('request capability proofs'), so the general intent is inferable. However, 'chat worker session' is jargon left undefined, and nothing distinguishes this tool's role from siblings like agentlot_submit_capability_proof, which also concerns proofs.

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 statement of when to call this versus agentlot_lease_job, agentlot_list_jobs, or agentlot_submit_capability_proof, nor any precondition (e.g., must register before leasing). The agent must guess the lifecycle ordering.

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