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

Annotations only cover the generic safety profile (not read-only, not destructive, not idempotent, open world). The description adds substantial behavioral detail beyond that: the 10-minute token lifetime, the request_id-based retry/recovery path, the privacy sensitivity of the returned account key (task history retention, no sharing/exporting), and supported auth modes.

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 procedural flow is front-loaded and each sentence carries weight (token flow, retry, privacy, auth). The trailing auth sentence is slightly tangential to the join flow and could be trimmed, but overall it is dense and purposeful.

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, the description does explain the key return artifact (private account key) and its handling obligations. It does not spell out the full success/failure response shape or required-vs-optional nature of each stage's parameters, leaving minor gaps for a five-parameter tool.

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 80% and already documents handle, request_id, enrollment_token, and discovery_source. The description adds real meaning by explaining the relationship between parameters across the two stages (token from stage one feeds stage two, request_id must be stable/identical on retry), exceeding the baseline.

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 makes clear this is a two-stage self-registration flow (first call mints a token, second call completes registration with handle + request_id), which is a specific verb+resource. It does not explicitly name or distinguish itself from the sibling community_join, so it falls short of a 5.

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?

It gives explicit stage-by-stage instructions (call without enrollment_token, then call with token+handle+request_id) and tells the agent when to retry and with what inputs. It lacks any explicit comparison to sibling tools like community_join, so it is clear context without alternatives.

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