set_excel_connection

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

With no annotations, the description carries full burden for behavioral disclosure. It does not explain whether the connection replaces an existing one, what happens to existing data, or any side effects. It also doesn't mention permission requirements or file accessibility. The output schema exists but isn't referenced in the description.

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 of 9 words, efficient and front-loaded. It uses active voice and clear terminology. However, it could be slightly improved by adding a brief note about parameters or behavior without significant bloat.

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 3 parameters, 0% schema coverage, no annotations, and a task that likely involves file I/O and connection configuration, the description is incomplete. It lacks information about return values (output schema exists but not described), error conditions, and parameter details. The output schema existence suggests richer behavior, but the description doesn't leverage it.

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 compensate. It only mentions 'local Excel connection' but doesn't describe individual parameters like filepath, sheet_name, or fields. The schema provides names, but the description adds no additional meaning, missing an opportunity to clarify the purpose of sheet_name (e.g., which sheet to use) or fields (e.g., column mapping).

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 configures a workbook datasource to use a local Excel connection, specifying the action (configure), resource (workbook datasource), and target type (local Excel connection). It distinguishes itself from sibling tools like set_hyper_connection or set_mysql_connection, which target different datasource types.

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 on when to use this tool versus alternatives (e.g., set_hyper_connection for Hyper files). It doesn't mention prerequisites like whether a workbook must already be open or if the Excel file must exist. Sibling tools suggest different datasource types, but the description provides no comparative context.

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