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

Annotations already declare readOnlyHint=true and destructiveHint=false, so safety is covered; the description adds genuinely useful behavior: the return can be null before settings are first saved, weekday indexing is 0=Sunday, and each rule carries the id required for deletion. It does not explain why idempotentHint is false for a read, nor whether the read is scoped to the caller only.

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 dense sentence, front-loaded with the resource and then the return structure. Every clause carries information, though the run-on structure makes the settings/overrides split slightly harder to scan than a short list would.

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?

There is no output schema, so the description carries the full burden of describing return values, and it does: settings-or-null, weekly rules keyed by weekday with 0=Sunday, dated overrides, and the id field. For a zero-parameter read tool this is sufficient to call and interpret correctly.

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?

Zero parameters, so the baseline is 4; there is nothing parameter-level the description needs to compensate for.

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 names the specific resource (the person's own mock-interview hosting setup) and enumerates what it returns: settings with time zone, meeting link, topics, paused flag, plus weekly rules and dated overrides. That distinguishes it from buddies like buddy_mock_settings_set or buddy_mock_schedule_set_weekly, though the retrieval verb itself is only implied ('Show' lives in the title, not the description).

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 implied: read your hosting configuration and rules, and note the ids needed for deletion. But there is no explicit when-to-use or when-not-to-use statement, and no pointer to the sibling tools that modify this data (buddy_mock_schedule_set_weekly, buddy_mock_schedule_add_override, buddy_mock_settings_set).

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