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

Annotations already flag destructiveHint=true and idempotentHint=true, but the description goes further by spelling out exactly what is destroyed: the whole memory is replaced, plain text clears the structured representation to avoid stale fields, and later AI regeneration may overwrite the value. That is meaningful context beyond the boolean hints.

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?

Four tight sentences with no filler; the core replacement rule and mutual exclusivity are front-loaded. The closing sentence about regeneration and creator facts is slightly dense but earns its place as routing guidance.

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 tool with a nested seven-field structured object, zero schema descriptions, and no output schema, the description covers replacement semantics and side effects well but leaves the shape and requirements of the structured payload and the role of brandId unexplained.

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 0%, so the description must carry the load. It usefully documents the memoryText-vs-structured mutual exclusivity (absent from the schema's anyOf/oneOf) and the cascade side effect, but says nothing about brandId or the seven nested structured fields (summary, pattern, works, formula, avoid, priority, learnings).

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 ('Replace the consolidated creator memory') plus the exact input contract (exactly one of memoryText or structured). This distinguishes it from sibling readers/writers such as get_creator_memory and regenerate_creator_memory without the agent opening a schema.

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?

Gives clear routing guidance: 'Does not change underlying facts; review those separately' and 'store lasting corrections in creator facts too', which steers the agent toward add_creator_fact/add_restriction for durable edits. It stops short of explicitly naming regenerate_creator_memory as the alternative when the agent wants AI-driven rewriting.

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