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

Annotations already declare readOnly, non-destructive, closed-world, so the safety profile is covered. The description adds genuinely new behavior: the failure shape `{ ok: false, error }` and an instruction not to retry blindly — useful operational guidance beyond the structured fields. It omits any mention of pagination behavior despite a `page` parameter.

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?

Front-loaded purpose sentence followed by a focused failure-handling note; no filler. Minor flaw: the two sentences run together ("...for the user If this tool returns") and the error paragraph is slightly long for its payload.

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 no output schema and 4 parameters at 50% coverage, the description should explain result shape and pagination, and it does neither. The error-handling guidance is a plus, but an agent still lacks enough to call it correctly with `search` or `page`.

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 50%: `context` and `llm_model` are well documented, but `page` and `search` have no schema descriptions and the description does not compensate — it says "Get all" projects with no hint that results can be filtered or paged. This gap could lead an agent to assume a single unfiltered list.

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 ("Get all advertiser projects for the user"), so the operation is unambiguous. It does not distinguish itself from the singular sibling `get-project`, leaving the agent to guess whether this is a list endpoint or a duplicate.

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?

No guidance on when to use this versus `get-project` or any other sibling, and no prerequisites stated. The only implied usage cue is the phrase "for the user", which is too weak to route an agent between alternatives.

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