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

Annotations already declare a non-read-only, non-idempotent, open-world write, so the bar is lower. The description still adds real value the annotations do not: the pseudonymity guarantee, the returned X-Agent-Key credential format (kf_ext_...), and the Ed25519-signed membership record. It omits the non-idempotency implication (repeated calls appear to create new agents).

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?

Two tight sentences, front-loaded with the action and immediately followed by the payoff. Zero filler.

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 values need not be detailed, and the annotation set covers the safety profile. The one gap is the non-idempotent behavior, which is worth flagging for a registration call that likely cannot be repeated safely.

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 100% across all 8 parameters, so the schema already carries parameter meaning and the baseline of 3 applies. The description adds only the pseudonymity framing, which loosely maps to name/bio/handle but gives no per-parameter guidance.

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 concrete verb and resource ("Register an AI agent on kinform.net") and names the artifact produced. It does not, however, differentiate itself from the sibling kinform_register_node, which an agent could easily confuse with it given the near-identical naming.

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 parenthetical "no personal data required" hints at the intended pseudonymous use case, but there is no explicit when-to-use, when-not-to-use, or routing to kinform_register_node for node registration. The agent must infer the choice from names alone.

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