Agent Skills: Google Sheets Automation via Rube MCP

Google Sheets Automation via Rube MCP

Automate Google Sheets workflows including reading/writing data, managing spreadsheets and tabs, formatting cells, filtering rows, and upserting records through Composio's Google Sheets toolkit.

Toolkit docs: composio.dev/toolkits/googlesheets

Prerequisites

• Rube MCP must be connected (RUBE_SEARCH_TOOLS available)
• Active Google Sheets connection via RUBE_MANAGE_CONNECTIONS with toolkit googlesheets
• Always call RUBE_SEARCH_TOOLS first to get current tool schemas

Setup

Get Rube MCP: Add https://rube.app/mcp as an MCP server in your client configuration. No API keys needed — just add the endpoint and it works.

1. Verify Rube MCP is available by confirming RUBE_SEARCH_TOOLS responds
2. Call RUBE_MANAGE_CONNECTIONS with toolkit googlesheets
3. If connection is not ACTIVE, follow the returned auth link to complete Google OAuth
4. Confirm connection status shows ACTIVE before running any workflows

Core Workflows

1. Read and Write Data

When to use: User wants to read data from or write data to a Google Sheet

Tool sequence:

1. GOOGLESHEETS_SEARCH_SPREADSHEETS - Find spreadsheet by name if ID unknown [Prerequisite]
2. GOOGLESHEETS_GET_SHEET_NAMES - Enumerate tab names to target the right sheet [Prerequisite]
3. GOOGLESHEETS_BATCH_GET - Read data from one or more ranges [Required]
4. GOOGLESHEETS_BATCH_UPDATE - Write data to a range or append rows [Required]
5. GOOGLESHEETS_VALUES_UPDATE - Update a single specific range [Alternative]
6. GOOGLESHEETS_SPREADSHEETS_VALUES_APPEND - Append rows to end of table [Alternative]

Key parameters:

• spreadsheet_id: Alphanumeric ID from the spreadsheet URL (between '/d/' and '/edit')
• ranges: A1 notation array (e.g., 'Sheet1!A1:Z1000'); always use bounded ranges
• sheet_name: Tab name (case-insensitive matching supported)
• values: 2D array where each inner array is a row
• first_cell_location: Starting cell in A1 notation (omit to append)
• valueInputOption: 'USER_ENTERED' (parsed) or 'RAW' (literal)

Pitfalls:

• Mis-cased or non-existent tab names error "Sheet 'X' not found"
• Empty ranges may omit valueRanges[i].values; treat missing as empty array
• GOOGLESHEETS_BATCH_UPDATE values must be a 2D array (list of lists), even for a single row
• Unbounded ranges like 'A:Z' on sheets with >10,000 rows may cause timeouts; always bound with row limits
• Append follows the detected tableRange; use returned updatedRange to verify placement

2. Create and Manage Spreadsheets

When to use: User wants to create a new spreadsheet or manage tabs within one

Tool sequence:

1. GOOGLESHEETS_CREATE_GOOGLE_SHEET1 - Create a new spreadsheet [Required]
2. GOOGLESHEETS_ADD_SHEET - Add a new tab/worksheet [Required]
3. GOOGLESHEETS_UPDATE_SHEET_PROPERTIES - Rename, hide, reorder, or color tabs [Optional]
4. GOOGLESHEETS_GET_SPREADSHEET_INFO - Get full spreadsheet metadata [Optional]
5. GOOGLESHEETS_FIND_WORKSHEET_BY_TITLE - Check if a specific tab exists [Optional]

Key parameters:

• title: Spreadsheet or sheet tab name
• spreadsheetId: Target spreadsheet ID
• forceUnique: Auto-append suffix if tab name exists (default true)
• properties.gridProperties: Set row/column counts, frozen rows

Pitfalls:

• Sheet names must be unique within a spreadsheet
• Default sheet names are locale-dependent ('Sheet1' in English, 'Hoja 1' in Spanish)
• Don't use index when creating multiple sheets in parallel (causes 'index too high' errors)
• GOOGLESHEETS_GET_SPREADSHEET_INFO can return 403 if account lacks access

3. Search and Filter Rows

When to use: User wants to find specific rows or apply filters to sheet data

Tool sequence:

1. GOOGLESHEETS_LOOKUP_SPREADSHEET_ROW - Find first row matching exact cell value [Required]
2. GOOGLESHEETS_SET_BASIC_FILTER - Apply filter/sort to a range [Alternative]
3. GOOGLESHEETS_CLEAR_BASIC_FILTER - Remove existing filter [Optional]
4. GOOGLESHEETS_BATCH_GET - Read filtered results [Optional]

Key parameters:

• query: Exact text value to match (matches entire cell content)
• range: A1 notation range to search within
• case_sensitive: Boolean for case-sensitive matching (default false)
• filter.range: Grid range with sheet_id for basic filter
• filter.criteria: Column-based filter conditions
• filter.sortSpecs: Sort specifications

Pitfalls:

• GOOGLESHEETS_LOOKUP_SPREADSHEET_ROW matches entire cell content, not substrings
• Sheet names with spaces must be single-quoted in ranges (e.g., "'My Sheet'!A:Z")
• Bare sheet names without ranges are not supported for lookup; always specify a range

4. Upsert Rows by Key

When to use: User wants to update existing rows or insert new ones based on a unique key column

Tool sequence:

1. GOOGLESHEETS_UPSERT_ROWS - Update matching rows or append new ones [Required]

Key parameters:

• spreadsheetId: Target spreadsheet ID
• sheetName: Tab name
• keyColumn: Column header name used as unique identifier (e.g., 'Email', 'SKU')
• headers: List of column names for the data
• rows: 2D array of data rows
• strictMode: Error on mismatched column counts (default true)

Pitfalls:

• keyColumn must be an actual header name, NOT a column letter (e.g., 'Email' not 'A')
• If headers is NOT provided, first row of rows is treated as headers
• With strictMode=true, rows with more values than headers cause an error
• Auto-adds missing columns to the sheet

5. Format Cells

When to use: User wants to apply formatting (bold, colors, font size) to cells

Tool sequence:

1. GOOGLESHEETS_GET_SPREADSHEET_INFO - Get numeric sheetId for target tab [Prerequisite]
2. GOOGLESHEETS_FORMAT_CELL - Apply formatting to a range [Required]
3. GOOGLESHEETS_UPDATE_SHEET_PROPERTIES - Change frozen rows, column widths [Optional]

Key parameters:

• spreadsheet_id: Spreadsheet ID
• worksheet_id: Numeric sheetId (NOT tab name); get from GET_SPREADSHEET_INFO
• range: A1 notation (e.g., 'A1:F1') - preferred over index fields
• bold, italic, underline, strikethrough: Boolean formatting options
• red, green, blue: Background color as 0.0-1.0 floats (NOT 0-255 ints)
• fontSize: Font size in points

Pitfalls:

• Requires numeric worksheet_id, not tab title; get from spreadsheet metadata
• Color channels are 0-1 floats (e.g., 1.0 for full red), NOT 0-255 integers
• Responses may return empty reply objects ([{}]); verify formatting via readback
• Format one range per call; batch formatting requires separate calls

Common Patterns

ID Resolution

• Spreadsheet name -> ID: GOOGLESHEETS_SEARCH_SPREADSHEETS with query
• Tab name -> sheetId: GOOGLESHEETS_GET_SPREADSHEET_INFO, extract from sheets metadata
• Tab existence check: GOOGLESHEETS_FIND_WORKSHEET_BY_TITLE

Rate Limits

Google Sheets enforces strict rate limits:

• Max 60 reads/minute and 60 writes/minute
• Exceeding limits causes errors; batch operations where possible
• Use GOOGLESHEETS_BATCH_GET and GOOGLESHEETS_BATCH_UPDATE for efficiency

Data Patterns

• Always read before writing to understand existing layout
• Use GOOGLESHEETS_UPSERT_ROWS for CRM syncs, inventory updates, and dedup scenarios
• Append mode (omit first_cell_location) is safest for adding new records
• Use GOOGLESHEETS_CLEAR_VALUES to clear content while preserving formatting

Known Pitfalls

• Tab names: Locale-dependent defaults; 'Sheet1' may not exist in non-English accounts
• Range notation: Sheet names with spaces need single quotes in A1 notation
• Unbounded ranges: Can timeout on large sheets; always specify row bounds (e.g., 'A1:Z10000')
• 2D arrays: All value parameters must be list-of-lists, even for single rows
• Color values: Floats 0.0-1.0, not integers 0-255
• Formatting IDs: FORMAT_CELL needs numeric sheetId, not tab title
• Rate limits: 60 reads/min and 60 writes/min; batch to stay within limits
• Delete dimension: GOOGLESHEETS_DELETE_DIMENSION is irreversible; double-check bounds

Quick Reference

| Task | Tool Slug | Key Params | |------|-----------|------------| | Search spreadsheets | GOOGLESHEETS_SEARCH_SPREADSHEETS | query, search_type | | Create spreadsheet | GOOGLESHEETS_CREATE_GOOGLE_SHEET1 | title | | List tabs | GOOGLESHEETS_GET_SHEET_NAMES | spreadsheet_id | | Add tab | GOOGLESHEETS_ADD_SHEET | spreadsheetId, title | | Read data | GOOGLESHEETS_BATCH_GET | spreadsheet_id, ranges | | Read single range | GOOGLESHEETS_VALUES_GET | spreadsheet_id, range | | Write data | GOOGLESHEETS_BATCH_UPDATE | spreadsheet_id, sheet_name, values | | Update range | GOOGLESHEETS_VALUES_UPDATE | spreadsheet_id, range, values | | Append rows | GOOGLESHEETS_SPREADSHEETS_VALUES_APPEND | spreadsheetId, range, values | | Upsert rows | GOOGLESHEETS_UPSERT_ROWS | spreadsheetId, sheetName, keyColumn, rows | | Lookup row | GOOGLESHEETS_LOOKUP_SPREADSHEET_ROW | spreadsheet_id, query | | Format cells | GOOGLESHEETS_FORMAT_CELL | spreadsheet_id, worksheet_id, range | | Set filter | GOOGLESHEETS_SET_BASIC_FILTER | spreadsheetId, filter | | Clear values | GOOGLESHEETS_CLEAR_VALUES | spreadsheet_id, range | | Delete rows/cols | GOOGLESHEETS_DELETE_DIMENSION | spreadsheet_id, sheet_name, dimension | | Spreadsheet info | GOOGLESHEETS_GET_SPREADSHEET_INFO | spreadsheet_id | | Update tab props | GOOGLESHEETS_UPDATE_SHEET_PROPERTIES | spreadsheetId, properties |

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