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

Annotations already declare readOnly, idempotent, non-destructive, and closed-world behavior. The description adds that the guide is curated, account-specific ('describes their own account'), and covers boundaries and workflows, which tells the agent the content is personalized rather than generic. It does not describe return format or pagination, but with rich annotations this is a solid addition.

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 that begins with the usage trigger and then lists the guide's contents. There is no wasted language, and the key routing condition is placed first.

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 four optional parameters, full schema coverage, and no output schema, the description supplies the missing content-level context: it explains that the tool returns an account-specific guide covering X1, capabilities, workflows, and boundaries. It omits explicit routing against similar siblings, but is otherwise complete enough for correct invocation.

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?

Schema coverage is 100%, so all four optional parameters are already documented with descriptions, enums, and examples such as 'what can X1 do for me'. The description adds no parameter-level syntax or semantics beyond what the schema provides, making the baseline 3 appropriate.

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 resource (a curated guide to X1) and scope (what this person can do on this connection, key workflows, boundaries) in concrete terms. It does not explicitly differentiate from sibling tools like get_x1_workflow_guide, which also likely covers workflows, so it falls 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?

Explicitly says 'Use when the connected person asks what X1 is or what X1 can do for them,' giving a clear trigger condition. It does not name when not to use it or point to alternatives such as get_x1_context or get_x1_workflow_guide, so it stops short of the top score.

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