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softgridinc-pte-ltd

Excel Reader Server

read_excel

Extract data from Excel files by reading content and converting it into structured JSON format for analysis or integration.

Instructions

Read content from Excel (xlsx) files

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
file_pathYesPath to the Excel file

Implementation Reference

  • Core handler logic for the 'read_excel' tool: iterates over all sheets in the workbook, reads each row, converts cell values to strings, and stores in a dictionary by sheet name.
    if name == "read_excel":
        # Original functionality - process all sheets
        for sheet_name in workbook.sheetnames:
            sheet = workbook[sheet_name]
            sheet_data = []
            
            for row in sheet.rows:
                row_data = [str(cell.value) if cell.value is not None else "" for cell in row]
                sheet_data.append(row_data)
            
            result[sheet_name] = sheet_data
  • Registers the 'read_excel' tool via the list_tools() handler, including its JSON schema for input validation (requires 'file_path') and description.
        name="read_excel",
        description="Read content from Excel (xlsx) files",
        inputSchema={
            "type": "object",
            "properties": {
                "file_path": {
                    "type": "string",
                    "description": "Path to the Excel file"
                }
            },
            "required": ["file_path"]
        }
    ),
  • JSON Schema definition for the 'read_excel' tool inputs.
        "type": "object",
        "properties": {
            "file_path": {
                "type": "string",
                "description": "Path to the Excel file"
            }
        },
        "required": ["file_path"]
    }
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It states it reads content but doesn't specify what content is read (e.g., all sheets, default sheet, or entire file), how errors are handled, or any constraints like file size limits. This leaves significant behavioral gaps for a read operation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence that directly states the tool's function without unnecessary words. It is front-loaded with the core action and resource, making it highly concise and well-structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a tool with no annotations, no output schema, and siblings that suggest more specific functionality, the description is incomplete. It doesn't clarify the scope of reading (e.g., all sheets vs. a default), output format, or how it differs from siblings, leaving the agent with insufficient context for effective use.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% description coverage, with 'file_path' clearly documented. The description adds no additional parameter semantics beyond the schema, such as file format details or path examples. Given the high schema coverage, the baseline score of 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('Read content') and resource ('from Excel (xlsx) files'), making the purpose understandable. However, it doesn't explicitly differentiate from its siblings (read_excel_by_sheet_index and read_excel_by_sheet_name), which likely offer more specific reading options.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus its siblings or any alternatives. It lacks context about scenarios where this general read operation is preferred over sheet-specific reads, leaving the agent without usage direction.

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

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