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

Annotations already declare readOnlyHint=false, destructiveHint=false, idempotentHint=false, and openWorldHint=true, so the safety profile is covered by structured data. The description's "WRITE" merely restates readOnlyHint=false, and it omits genuinely useful behavior: whether duplicate titles are rejected, what happens to unspecified fields, and what the response returns.

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 fragments, front-loaded with the operation type, so there is no padding. But the brevity is under-specification rather than efficiency: the raw HTTP endpoint ("POST /deals/") consumes space without helping an agent decide or call correctly.

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 six-parameter mutation tool with no output schema and partial parameter documentation, the description should carry meaningful weight. It instead leaves the agent without required-field emphasis, creation semantics, or any notion of what is returned.

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 67%, and the description adds nothing about any of the six parameters. It does not mention that 'title' is the sole required field, nor clarify deal-specific fields like amount, rating, or close_date beyond what the partial schema already says.

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 gives a specific verb and resource ("create a deal"), so the basic action is unambiguous. However, it offers no differentiation from the many sibling create_* tools beyond the name itself, and never says what a deal is or how it relates to contacts, companies, or stages.

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?

"WRITE:" signals a mutation, but there is no guidance on when to use this versus cogmento_update_record_field or the related create_* tools, nor any prerequisites such as required permissions or whether a contact/company should exist first. The agent must infer all of this.

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