set_nested_cells

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

The description discloses important behaviors beyond the schema: auto-backup to prev/anchor slots, the nuance that backup=False only skips rotation, atomic validated save, and refusal to operate on documents open in Word. Since no annotations are provided, this fully carries the behavioral transparency burden.

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 dense but well-organized, front-loading the core purpose and then adding behavioral caveats in a compact way. Every clause adds useful information and there is no filler or redundancy.

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 complex nested write operation with seven parameters and no annotations, the description covers the addressing model, edit payload, backup semantics, failure condition, and save behavior. Since an output schema exists, the description does not need to explain return values, making it complete enough for correct invocation.

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?

With 0% schema description coverage, the description compensates well by explaining the key semantics: edits is a list of row/cell/text objects, the host cell is addressed by table_index/row/cell, and nested_index selects among multiple nested tables. It also clarifies the backup parameter's behavior beyond the schema's Boolean default.

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 states a specific verb and resource: writing cells inside a nested table, and clearly distinguishes this from the many sibling table-editing tools by emphasizing NESTED and host-cell addressing. The mention of edits shape and nested_index makes the operation concrete and unambiguous.

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 clearly signals the intended context: use for nested tables, where the host cell is identified by table_index/row/cell and nested_index selects among several nested tables. It does not explicitly name an alternative like set_cells or state when not to use this tool, so it provides clear context without explicit exclusions.

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