timps_inbox_gatekeeper

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

With no annotations, the description must carry the behavioral transparency burden. It discloses the tool's high-level actions (flagging, drafting, identifying newsletters) and any implied non-sending behavior, but it does not clarify whether it actually sends drafts, modifies emails, requires authentication, or returns a summary. This is adequate but leaves meaningful ambiguity.

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 focused sentences. The first sentence front-loads the core purpose and deliverables; the second sentence gives the input instruction. There is no filler or redundant explanation.

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?

The description provides a clear high-level contract for a moderately complex analysis tool, but it lacks return-format details and side-effect information. Since there is no output schema and no annotations, the description would benefit from stating whether the result is a list of flagged emails, drafted reply text, or a combined triage summary. Still, the core use case is sufficiently communicated.

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 baseline is 3. The description reinforces that emails must contain 'from', 'subject', and 'body', which matches the schema, but it adds no new information about format, constraints, or semantics beyond what the schema provides. The optional context parameter is not addressed in the description, though the schema covers it.

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?

Begins with a strong, specific verb 'Triage' and clearly identifies the resource ('a batch of emails'). It enumerates concrete sub-actions (flag urgent ones, draft routine replies, identify newsletters), which sharply distinguishes it from sibling tools focused on tasks, dispatch, or system maintenance.

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 clearly states when to use it: when you have a batch of emails to triage. It also specifies the required input shape. It does not explicitly discuss alternatives or when not to use it, but within the sibling context none of the other tools obviously compete for this email-triage scenario.

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