sap_modify_cell

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

Annotations already indicate this is a non-read-only, non-destructive operation. The description adds that it only modifies editable cells, which is a behavioral constraint beyond the annotations. It does not disclose authentication needs or error states, but for a simple cell modification this is acceptable.

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 two sentences long, front-loaded with the core purpose, and contains no fluff. Every sentence adds 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?

Given the complexity of SAP automation and the number of siblings, the description is somewhat brief. It does not explain success/failure behavior, return value (though an output schema exists), or error handling. While the core usage is clear, more context about return or side effects would improve completeness.

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?

The input schema has 4 parameters (grid_id, row, column, value) with 0% schema description coverage. The description only implies these parameters by saying 'Modify the value of a cell' but does not explain their semantics, format (e.g., 0-based vs 1-based indices), or constraints. More detail is needed to compensate for the lack of schema descriptions.

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 'Modify the value of a cell' and identifies the resource as 'an ALV grid or table control'. It is specific and distinguishes from sibling tools like sap_get_cell_info (read) and sap_set_current_cell (focus setting).

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 provides explicit guidance: it says it only works on editable cells and advises using sap_get_cell_info to check editability first. This tells the agent when to use the tool and what prerequisite to check.

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