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

Annotations already declare readOnlyHint=false, destructiveHint=false and openWorldHint=true, so the safety profile is partly covered. However, the description adds essentially nothing beyond the title: it does not explain what happens on a duplicate domain, how the required idempotency_key affects retry safety (notably the annotations declare idempotentHint=false despite a required idempotency key), or whether a missing workspace_id causes an error.

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 front-loaded sentence with zero filler, which is efficient and easy to scan. It is arguably too terse for a seven-parameter mutation, but on the conciseness dimension itself there is nothing to trim.

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 7-parameter, non-idempotent, open-world mutation with a nested object override, low schema coverage, and no output schema, the description is far too thin. It omits duplicate-handling behavior, workspace/brand scoping rules, idempotency-key usage, and the purpose of the body/query override parameters, leaving the agent to guess.

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 43%, so the description must compensate and it does not. Only 'root domain' hints at the expected format of the required `domain` parameter; the required `idempotency_key` semantics, the `brand_id` vs `workspace_id` relationship, and `display_name` usage are left entirely to the schema (or undocumented).

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 ('Register a competitor root domain to track'), which is far more precise than the bare title 'Add Competitor' and clearly pairs with the read-only sibling aidelly_list_competitors. It stops short of explicitly naming that sibling or stating what makes this distinct from other add_* tools, so it lands at a clear-but-undifferentiated 4.

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 when-to-use guidance, no prerequisites (e.g. workspace must exist, brand must be set up), and no mention of alternatives such as aidelly_list_competitors for checking whether a competitor is already tracked. The only usage signal is the weak implication that this is for adding a tracked domain.

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