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

With no annotations, the description carries the full burden. It does add a genuinely useful behavioral fact — that this is a WRITE operation returning a tx payload rather than executing the registration itself — which tells the agent a signing/broadcast step follows. However, it omits permissions, gas/cost implications, idempotency, and failure behavior for an on-chain mutation.

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 short, front-loaded sentences with zero filler; the write semantics are surfaced immediately. It is arguably over-terse for a crypto registration flow, but every sentence present earns its place.

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?

For a four-parameter on-chain write with no annotations and no output schema, the description is too thin: it does not explain what the returned tx payload is for, what the caller must do with it, or what preconditions (encrypted payload already pinned) the required parameters imply. The complexity of the tool outpaces the disclosure.

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%, including a default value and an enum note for chain, so the schema already documents all four parameters well. The description adds nothing beyond the schema about tokenURI, encryptedPayloadCid or eciesEncryptedKey, which is acceptable but not illuminating — notably it never hints at the ordering dependency between payload upload and this call.

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?

A specific verb-plus-resource statement ('Register a new Agent on-chain') that clearly separates this from read-oriented siblings like actora_identity_get, actora_identity_list and actora_identity_exists. It does not name a sibling alternative explicitly, but the operation is unambiguous.

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 description gives no when-to-use guidance, no prerequisite ordering (e.g. that the encrypted payload must already exist on IPFS), and no indication of when an agent should call this versus actora_central_agent_create. Usage must be inferred entirely from the tool name and the required parameter names.

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