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

Annotations only flag destructiveHint=true. The description adds behavior the annotations cannot convey: values sync to external channels, a date range is overwritten per-day, and null explicitly removes a price. The restore-oriented warning signals the mutation is not trivially reversible.

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 with the scoping constraint, then fields, then the destructive warning and endpoint. The enumeration of override values and price1..price16 is slightly dense, but each clause carries information useful to invocation.

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 24-parameter destructive mutation with no output schema, the description covers impact (channel sync), reversibility (read-first/restore), and null semantics. It does not state whether omitted fields are left untouched, which is the main residual gap.

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 83%, so the baseline is 3. The description names fields and the override values, but these are already present in the schema (including the 'null removes it' semantics on each price slot), so it adds little beyond what structured data provides.

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 (Set) plus resource (per-day calendar values) and scope (ONE room over a date range), then enumerates the affected fields. It is immediately distinguishable from beds24_get_room_calendar and the booking siblings without 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?

Explicitly names the alternative and the prerequisite workflow: 'Read the current values first with beds24_get_room_calendar so you can restore them.' This gives the agent both when-to-use and a safety precondition, which is more than most definitions offer.

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