M.Video price update

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

No annotations are provided, so the description must disclose behavioral traits. It does mention the dry_run option to preview the request and specifies the unit 'kopecks', which adds useful context. However, it omits the 'confirm' parameter, potential validation, or any side effects beyond 'update', leaving gaps for a mutation tool.

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 description is only two sentences, front-loaded with the core purpose, and every clause provides value (action, units, safety tip). It is appropriately concise without unnecessary fluff.

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 and no output schema, the description is too brief. It does not mention the 'confirm' flag, the array nature of 'items', or any constraints (e.g., max 1000 items, required product_id/price). An agent would likely need additional info to invoke it correctly in production.

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 compensate. It does clarify that price, old_price, and min_price are in kopecks and introduces dry_run's purpose. But it does not explain 'confirm' or the structure/requirements for 'items', leaving several parameters under-specified.

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 clearly states the action ('Update RUB prices') with a specific resource (M.Video prices) and distinct units (kopecks). This distinguishes it from siblings like mvideo_price_info (which likely reads prices) and mvideo_stock_update (which handles stock).

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?

The description implies when to use this tool (for price updates) and includes a safety guideline: 'Use dry_run=true to inspect the request before sending.' However, it does not explicitly mention alternative tools or when NOT to use it, so it falls short of a 5.

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