direct.hf.attach_callouts_to_ads

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 mostly doesn't. It never explains the meaning of the apply and dry_run flags, whether changes are reversible, what happens to callouts already attached, or what auth the account_id/direct_client_login imply. 'Human-friendly' is the only behavioral hint and it is unexplained.

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?

It is a single short sentence with no filler, which is efficient, but for a six-parameter mutation tool with dry-run semantics it is under-specified rather than genuinely concise. Front-loading is fine; substance is missing.

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 six parameters, no annotations, no output schema, and undocumented apply/dry_run behavior, the description does not give an agent enough to invoke this mutation safely or predictably. It should at minimum explain the dry-run/apply contract and the required callout set context.

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 only 33% (just account_id and direct_client_login are documented). The description ties 'callout (adextension) ids' to callout_ids and 'ads' to ad_ids, but leaves the safety-critical apply and dry_run flags completely unexplained in both schema and description, which is a substantial gap.

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 ('attach') and resource ('callouts (adextension ids) to ads'), so an agent knows exactly what operation it performs. It does not, however, name or contrast itself with the close siblings direct.hf.attach_sitelinks_to_ads and direct.hf.attach_vcard_to_ads, so the sibling differentiation is left to the tool name.

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 create_callouts or the other attach_* tools, no statement of prerequisites (e.g. that callout sets must already exist), and no mention of how apply/dry_run interact. The name loosely implies the use case, but nothing is stated.

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