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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the safety profile is covered. The description adds useful scope content (which pricing topics are included) but says nothing about caching, freshness, or whether the content is static marketing copy versus live data.

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 sentence with no filler, front-loading the pricing topic and then enumerating the covered content. The semicolon-list construction is slightly dense but earns its space.

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 need not explain return values, and it correctly limits itself to describing content coverage. For a one-optional-parameter read tool this is essentially complete, though a brief note on when to use it over siblings would close the remaining gap.

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?

There is only one optional parameter (locale) and schema description coverage is 100%, so the schema fully documents it. The description never mentions the locale parameter or multi-language behavior, so it adds nothing beyond the schema — the baseline of 3 applies.

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 the concrete resource it returns — engagement models and how pricing works — and enumerates the three models (dedicated team, per-project milestone billing, equity partnership) plus the cost guide and free diagnosis. It lacks an explicit verb and does not distinguish itself from siblings such as list_services or read_page, so it stops short of a 5.

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 the tool to call for pricing/engagement information, but there is no statement of when to prefer it over read_page or list_services, and no exclusions or prerequisites. Adequate but with a clear gap.

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