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

No annotations are provided, so the description carries the full behavioral burden and it discloses almost nothing. 'Delete' implies a destructive, likely irreversible mutation, but the description never says whether the deletion cascades to invoices/orders/receipts referencing the client, whether it fails when such documents exist, whether confirmation is required, or what is returned.

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?

A single six-word sentence that is front-loaded and waste-free — it is hard to be more concise. The economy comes at the cost of substance, which is penalized in other dimensions rather than here.

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 destructive mutation with zero annotation coverage and no output schema, the definition is under-specified: an agent cannot tell whether deletion is safe, reversible, blocked by dependent documents, or what the response looks like. The schema fully covers the only parameter, but that is not enough for this risk profile.

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% and the single parameter is documented in the schema (including provenance from search_clients), so the baseline is 3. The description adds only the trivial restatement 'by ID' and nothing about ID format or behavior for unknown IDs.

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 ('Delete a client') plus the identifying key ('by ID'), which cleanly separates it from the many delete_* siblings that target invoices, orders, products, suppliers, etc. It doesn't explicitly name or contrast those siblings, so 4 rather than 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?

There is no guidance on when to use this versus update_client, or versus deactivating a client, and no prerequisites or preconditions. The only implied usage is the ID parameter's parenthetical pointing at search_clients, which is a discovery hint rather than a usage rule.

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