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

Annotations already declare this a safe read (readOnlyHint=true, destructiveHint=false, openWorldHint=false), so the description doesn't need to cover safety. It does add context the annotations can't: the exact shape of the returned payload and the nested path context.imageGeneration.enabled, which is a concrete behavioral detail an agent would otherwise have to discover by trial.

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 core payload description and the actionable generate_image prerequisite are front-loaded before the field enumeration. The settings enumeration is dense but each parenthetical carries real information; the only mild bloat is the long nested clause around settings and syncEnabled.

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 no output schema, the description carries the full burden of explaining return values, and it does so thoroughly, including a nested flag path and a cross-tool dependency. It stops short of mentioning error behavior for an invalid or unknown projectId, which keeps it at 4 rather than 5.

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 a single parameter and schema description coverage is 100%, so the schema fully documents projectId as a UUID. The description adds no meaning beyond that (no note on obtaining the ID, e.g. from list_projects), so it lands at baseline.

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 opens with a specific verb+resource ("Get a project's full details") and then enumerates exactly which fields come back (id, name, slug, plan, siteBaseUrl, moduleAccess, settings, brand/AI context, content counts). This clearly separates it from list_projects (which lists rather than fetches one) and from get_theme (which the description explicitly defers to for theme data).

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?

It gives one explicit routing rule: "Check that flag before calling generate_image," and points to get_theme for the theme itself. What's missing is a when-not: nothing says to prefer list_projects when the agent lacks a projectId, so the agent must infer that from sibling names.

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