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

Annotations already declare readOnlyHint=true, idempotentHint=true, openWorldHint=false and destructiveHint=false, so the safety profile is fully covered structurally. The description adds only the scope of data returned, which is largely restated by the output schema. No note on auth failure or what happens when no account is connected.

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?

Two short sentences with zero filler: the first states what is retrieved, the second states the invocation trigger. The identifying information is front-loaded before the usage rule.

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 parameterless, read-only tool with full annotation coverage and an output schema, this is nearly sufficient — the agent knows what it gets and when to call it. The only gap is the unauthenticated/disconnected case, which an agent might want to know before calling.

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?

The tool takes zero parameters, so there is nothing to disambiguate and the baseline of 4 applies. The description reinforces this by implying a single, implicit connected account rather than a lookup argument.

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 a specific verb ('Identify') and a specific resource ('the connected QuestionPunk account') and even enumerates the fields returned (ID, name, email). No sibling tool overlaps this function, so an agent can select it unambiguously, though it doesn't explicitly contrast itself with any sibling.

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 an explicit trigger: 'Call it when the user asks which account is connected.' That is a clear when-to-use rule. It stops short of stating when-not-to-use or naming alternatives, but none of the siblings plausibly compete for this trigger.

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