Highlight Table Header

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

With only a title annotation, the description carries full burden for behavioral disclosure. It states 'apply special highlighting' but does not specify what 'special' means, whether the operation is reversible, required permissions, or any side effects (e.g., overwriting existing formatting). This is insufficient for a mutation tool.

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 a single sentence without unnecessary words, achieving conciseness. However, it sacrifices informativeness for brevity; a bit more structure (e.g., listing parameters or providing context) would improve utility without being verbose.

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 no output schema and 4 undocumented parameters, the description should cover return values, error conditions, or prerequisites. It does not, leaving the agent uninformed about expected outcomes or failure modes. This is inadequate for a tool that modifies a document.

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 0%, so the description must add meaning to parameters. However, it does not explain 'filename', 'table_index', 'header_color', or 'text_color'. The defaults are mentioned in schema but not interpreted, leaving the agent without understanding of valid values or usage.

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 verb 'apply' and resource 'table header row', making the tool's purpose immediately understandable. However, it does not distinguish this tool from other table formatting siblings like 'format_table' or 'set_table_cell_shading', limiting its differentiation.

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?

No guidance is provided on when to use this tool versus alternatives. An agent has no context about prerequisites, preferred use cases, or when to avoid this tool, leaving the agent to guess.

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