households_mealplan_rules_update_one

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

With no annotations, the description carries the full behavioral burden, but it does disclose the key trait that this is a full replacement (existing rule fields are overwritten) and exposes the PUT route. It omits permission requirements, error/not-found behavior, and reversibility, so it is only partially transparent.

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?

The actual instruction is front-loaded and short, but it is followed by a long redundant keyword list that includes multiple restatements of the same verb and the tool name. The keyword blob consumes tokens without adding selection value.

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 mutation tool with no annotations, no output schema, and a nested request body that is entirely undocumented, the description is too thin. An agent cannot tell what a 'rule' contains or what a successful replacement returns.

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% and the description says nothing about item_id or the nested body fields (day, entryType, queryFilterString), whose purpose — especially queryFilterString — is opaque from the schema alone. The keyword tail adds noise rather than parameter meaning.

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 definition states a specific verb and resource ('Update One — Households: Mealplan Rules. Replace (full update) rule') and is clearly distinguished from the get/create/delete mealplan-rule siblings. It stops short of naming those siblings explicitly, keeping it out of 5 territory.

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 households_mealplan_rules_create_one or the get/delete variants, and no prerequisites (auth, required household context) are stated. Only the 'replace (full update)' phrasing hints at PUT semantics vs a partial update.

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