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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds that inputs are validated server-side and the tool returns an audited deliverable, which is basic behavioral context but does not go beyond what annotations imply. No contradictions found.

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 relatively short (3 sentences including the reference case), but the first sentence is cryptic ('Gapup agent-payable C-suite expertise (CSO)') and may confuse. It could be streamlined and front-loaded with clearer purpose. The reference case is helpful but adds length.

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?

No output schema exists, so the description should describe the deliverable's fields. It mentions 'fit score + valuation + integration risk' only in the reference case, not as guaranteed output. Input parameters are not explained, and the async behavior is only in the schema. The description is incomplete for a tool with nested inputs and no output schema.

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 only 25% (only 'async' parameter has a description in the schema). The tool description does not explain the acquirer or criteria parameters, nor their nested fields. The phrase 'send the documented case fields' is vague. The description adds little semantic value beyond the schema.

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 clearly indicates that the tool screens M&A deals for an acquirer, providing a structured deliverable with fit score, valuation, and integration risk. The reference case (Salesforce M&A targets) helps clarify the purpose. While not as explicit as 'screens potential targets', the verb and resource are clear. It distinguishes from siblings like re_deal_screener by mentioning M&A.

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 lacks any guidance on when to use this tool versus alternatives. It does not mention when not to use it or provide criteria for choosing among siblings (e.g., re_deal_screener, ma_arbitrage_hunter). The phrase 'Gapup agent-payable C-suite expertise' is vague and does not clarify context.

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