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

Annotations declare readOnlyHint=false, openWorldHint=false, destructiveHint=false, and idempotentHint=false, so the agent knows this is a non-destructive write with no external side effects. The description adds nothing beyond that—notably, it fails to mention that calling this submits a request rather than creating the tool, and doesn't say whether repeated calls are logged or deduplicated (a relevant point given idempotentHint=false). 'Free' is uninformative filler.

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 two fragments ('Free.' / 'MCP tool: `request_missing_tool`.') that convey no actionable information. Brevity here reflects under-specification, not conciseness; there is no front-loaded purpose statement.

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 request-submission tool with no output schema, the description should say what happens to the request and what the caller gets back. None of that is present, and the annotations alone don't cover submission outcome or turnaround. The definition is inadequate for calling the tool intelligently.

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% with a single required string parameter documented as 'The tool you wish existed.' The description adds no detail on what a good request looks like (name? full description? format?), so it neither helps nor hurts beyond the schema 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 restates the name/title ('MCP tool: request_missing_tool') with no verb or resource explanation. 'Request a missing tool' only appears in the title, so the body adds nothing about what the tool does or returns. It does not distinguish this from the compliance/scanning siblings, though the name itself is fairly self-explanatory.

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?

No guidance on when to call this versus other tools, no prerequisites, and no mention of what happens after a request (is it queued, filed, answered?). The only hint is the parameter label 'The tool you wish existed,' which implies the intent but not the usage conditions.

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