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

Annotations already declare readOnlyHint=true and openWorldHint=false, so safety and locality are covered. The description adds that the payload is a single paragraph containing links to docs, API, MCP and signup, which is useful, but it does not say whether the links are static or whether the text changes over time.

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 front-loaded sentence with no filler; the parenthetical product definition is slightly dense but earns its place by anticipating the agent's need to know what Wake is. Nothing is redundant.

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 no-parameter read-only informational tool with annotations already covering safety, the description gives enough to know what comes back and roughly why to call it. Only the relationship to wake_check_site is left implicit.

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 tool takes zero parameters, so there is nothing for the description to disambiguate; the baseline of 4 applies. The schema is fully closed (additionalProperties=false) and consistent with a no-arg informational 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?

The description states a concrete deliverable: one paragraph explaining Wake and what it offers (agent experience observability + agent engine optimisation), plus links to docs, API, MCP and signup. That is specific enough to predict the response, though the verb ('returns') is implicit and the sibling wake_check_site is not referenced.

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?

Usage is only implied: an agent can infer this is orientation/introduction content to read when it needs to understand the product. There is no explicit when-to-use statement and no mention of how this differs from the sibling wake_check_site.

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