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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive), and the description adds real context beyond them: templates are per ad account, they originate from 'Save as template' in the app, and mutation of them is out of scope. It stops short of describing result ordering, paging, or what happens when an account has no saved templates.

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 front-loaded with the core definition and then moves to levels and the prepare_launch handoff, which is a sound order. But the prose is a dense run-on built from stacked parentheses ('TikTok account, texts, URL, CTA…', '"Save as template" in the ad group / ad squad and ad params'), making it slower to parse than it needs to be.

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?

There is no output schema, and the description never says what a template record contains (at minimum id and name) even though obtaining those ids is the entire purpose of the call. Combined with the unresolved overlap with get_templates, this leaves an agent slightly under-informed for a tool that is otherwise simple.

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?

The schema documents level and ad_account_id (pointing to list_ad_accounts) but leaves platform as a bare enum. The description compensates usefully by defining level semantics — adgroup means an ad group's/ad squad's settings, ad means an ad's account, texts, URL, CTA — going beyond the terse schema text. The gain is real but narrow, so this sits at an honest 3.

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 names the exact resource — TikTok/Snapchat ad group, ad squad and ad templates saved in Apogee — and is scoped per ad account, so an agent knows precisely what comes back. It does not, however, distinguish itself from the sibling get_templates, which also sounds like a template lister, leaving an ambiguity the agent must resolve elsewhere.

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?

It states the consumption path explicitly: feed the returned ids into prepare_launch at tiktok.adgroup_template_id / tiktok.ad_template_id / snapchat.adsquad_template_id / snapchat.ad_template_id. It also draws a clear boundary by saying saving and deleting stay in the Apogee app, though it offers no guidance on when to prefer this over get_templates.

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