spreadsheet_write_cells

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

Without annotations, the description hints at a write operation with a confirm safety mechanism, but does not detail consequences (e.g., overwriting behavior), permission requirements, or error states.

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?

Two sentences with zero redundancy; front-loads the action and critical usage instructions. Efficient and to the point.

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?

Describes core operation but lacks details on return values (no output schema), handling of optional parameters, and edge cases. Adequate but not comprehensive.

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 covers all 7 parameters with descriptions, so baseline is 3. The description adds a note about confirm=true but does not enrich understanding beyond the schema.

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 ('Write values to a range of cells'), identifies the resource ('Synology Spreadsheet sheet'), and distinguishes from siblings like append_rows by specifying 'to a range' and mentioning the confirm flag.

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?

Provides basic guidance on providing file_id/name and setting confirm=true, but does not explicitly differentiate when to use this tool over alternatives such as spreadsheet_append_rows or spreadsheet_batch_update.

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