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

Annotations already flag destructiveHint and openWorldHint, but the description adds valuable specifics: spending/deletion consequences, the confirm gating with matching requestId, and that the claim is only live once status is active. It does not state what happens if confirm is passed without an approved preview or who the 'owner' is.

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?

Three tight sentences, front-loaded with purpose, then the safety gate, then the completion condition. The final "Fields: soclo://tools/soclo_ads_create_ad_account" clause is a cryptic non-sequitur that adds no information.

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?

With 10 parameters, a nested payload, no output schema and destructive semantics, the description covers the confirmation workflow well but leaves the bulk of the payload fields and the recovery path (e.g. soclo_ads_operation_status) unexplained. Adequate, but not complete for a creation tool of this complexity.

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 60% and the nested payload contains many undocumented fields (io, invoice, partner, poNumber, fundingId, mediaAgency, endAdvertiser, invoicingEmails). The description only restates confirm:true and requestId, both already documented in the schema, and the trailing "Fields: soclo://tools/..." pointer conveys no parameter meaning.

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?

States a specific verb and resource: "Create Meta ad account." An agent can distinguish it from soclo_ads_list_ad_accounts or soclo_ads_update_ad_account without opening the schema. No explicit sibling routing, so it stops short of a 5.

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?

Gives a real usage gate: spending/deletion actions require a preview first, then an owner-approved confirm:true reusing the same requestId. However, it never names the preview tool or its sibling, so the agent must still discover how to obtain the preview.

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