merge_hwp_cells_horizontal

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

No annotations are provided, so the description must fully disclose behavior. It mentions the mechanism (colSpan) and that col_count >=2, but does not explain if the operation is destructive, error handling, or what happens when output_path is omitted (e.g., modifies original file).

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 concise with only two sentences: the first states the purpose and method, the second lists arguments. It is front-loaded but could be more structured with bullet points.

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 6 parameters, no output schema, and no annotations, the description lacks completeness. It does not specify indexing conventions, default behavior, error conditions, or when to choose horizontal vs vertical merge.

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 schema has 0% description coverage. The description adds a constraint (col_count >=2) and marks output_path as optional, but does not explain the meaning of other parameters like row, col_start, table_index (e.g., zero-indexed) or file_path format.

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 tool merges horizontal cells in a table row by setting colSpan and removing absorbed cells. It includes specific verb and resource, and distinguishes from the sibling merge_hwp_cells_vertical.

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 lists required arguments but provides no guidance on when to use this tool versus alternatives like merge_hwp_cells_vertical. There are no conditions, prerequisites, or exclusions mentioned.

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