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

Annotations already declare readOnly, idempotent, openWorld and non-destructive, so the safety profile is covered. The description adds genuinely new behavioral context the annotations cannot express: the operation costs $0.015 USDC and is settled via an HTTP 402 challenge on Base or Stellar, which tells the agent a payment handshake will occur. It stops short of describing failure behavior or rate limits.

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?

A single dense sentence, front-loaded with the action and resource, followed by the concrete returns and the cost/payment clause. Every clause 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?

With an output schema present, the description does not need to enumerate return values, and the payment/network detail fills the one behavioral gap annotations leave open. What is still missing is any hint of limitations or failure modes (non-HTTPS, private, dynamic pages), which an agent deciding whether to call it would benefit from.

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?

Only one parameter and schema description coverage is 100% ('Full public HTTPS URL to scrape and refine...'), so the schema already carries the semantics. The description's 'any public HTTPS URL' is consistent but adds no format, syntax, or constraint detail beyond what the schema states.

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 specific verb and resource ('fetch any public HTTPS URL and extract clean... prose') plus the concrete payload the agent gets back (prose, title, status, character count). It implicitly separates itself from morsebyte_extract_json by producing prose rather than structured fields, but it never names a sibling to make the boundary explicit.

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 purpose implies the use case (turn a live web page into LLM-ready text), and the mention of HTTPS/public narrows applicability. However there is no explicit when-to-use vs. when-not, no mention of alternatives like morsebyte_extract_json or morsebyte_verify_links, and no prerequisites such as whether JavaScript-rendered or paywalled pages are supported.

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