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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint=false, and destructiveHint=false. Beyond that, the description discloses what the tool returns (full menu of real questions mapped to tool names) and the behavioral side effect of the context parameter (recorded as intent, never changes the answer). That is meaningful additional transparency for a no-required-parameter help tool.

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 description is three tightly constructed sentences: first the use cases, then what it returns, then the alternative tool. Nothing is wasted, and the most important routing information is front-loaded.

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 read-only, zero-required-parameter help tool whose annotations already cover safety, the definition supplies purpose, usage triggers, the alternative tool, return content, and the side effect of the optional parameter. An agent has everything needed to call it correctly; the absence of an output schema is mitigated by the description of what the menu contains.

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 description coverage is 100%, so the single optional 'context' parameter is already fully documented in the schema. The tool description does not mention the parameter or add format/syntax guidance beyond what the schema provides, so the baseline 3 is 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?

The description states a specific verb and resource: it is a greeting/liveness/help tool that returns a menu of real questions mapped to tool names. It explicitly distinguishes itself from the sibling get_mentoring_options by telling mentoring-seekers to skip this tool. An agent can immediately understand this is the general fallback/help tool.

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 description gives explicit when-to-use triggers (greeting, connectivity test, 'what can you do', any message too general to match a specific tool) and an explicit when-not/alternative (for someone actually considering mentoring, skip to get_mentoring_options). No inference is required.

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