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

No annotations are provided, so the description carries the full burden. It discloses that the tool builds an on-chain payment plan, implying a transaction, but it doesn't mention side effects, permissions, or error conditions. The description is moderately transparent but lacks depth.

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 description is extremely concise: two sentences with no fluff. The first sentence states the purpose, and the second provides the next step. Every word serves a useful function.

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?

Given the lack of annotations, output schema, and parameter descriptions, the tool definition is incomplete. The description covers high-level purpose and a post-condition but fails to explain inputs, output, or behavior, leaving significant ambiguity.

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?

The input schema has 2 parameters (tier and owner) with 0% schema description coverage. The description does not mention or explain any parameters, leaving the agent without guidance on how to populate them. This is a critical gap.

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 clearly states the tool's function: it builds an on-chain ETH payment plan for Pro/Team tiers. The verb 'build' and resource 'on-chain ETH payment plan' are specific, and the scope (Pro/Team) differentiates it from sibling tools like pricing, status, or activation.

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 provides a clear sequential guideline: after the user pays, call stocktoken_access_activate. This helps the agent understand the workflow. However, it does not explicitly state when not to use this tool or offer alternatives, so some guidance is missing.

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