fetch_workspace_docs returns "No content found" for all valid URLs

[spm1001]

fetch_workspace_docs returns "No content found" for all valid URLs

Summary

The fetch_workspace_docs tool on the workspace-developer.goog MCP server returns "No content found for the provided URL" for all URLs, including URLs returned by search_workspace_docs.

Environment

• MCP endpoint: https://workspace-developer.goog/mcp
• Protocol version: 2024-11-05
• Tested: 2026-01-15

Steps to Reproduce

1. Initialize an MCP session with workspace-developer.goog
2. Use search_workspace_docs to find a page (works correctly, returns results with URLs)
3. Use fetch_workspace_docs with one of those URLs
4. Observe: Returns "No content found" instead of page content

Minimal Reproduction

# Initialize session
RESPONSE=$(curl -s -D - -X POST https://workspace-developer.goog/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"test","version":"1.0"}},"id":1}' 2>&1)

SESSION=$(echo "$RESPONSE" | grep -i "mcp-session-id" | cut -d' ' -f2 | tr -d '\r')

# Send initialized notification
curl -s -X POST https://workspace-developer.goog/mcp \
  -H "Content-Type: application/json" \
  -H "mcp-session-id: $SESSION" \
  -d '{"jsonrpc":"2.0","method":"notifications/initialized"}'

# This works - returns search results with URLs
curl -s -X POST https://workspace-developer.goog/mcp \
  -H "Content-Type: application/json" \
  -H "mcp-session-id: $SESSION" \
  -d '{"jsonrpc":"2.0","method":"tools/call","params":{"name":"search_workspace_docs","arguments":{"query":"Drive API files.list"}},"id":2}'

# This fails - returns "No content found"
curl -s -X POST https://workspace-developer.goog/mcp \
  -H "Content-Type: application/json" \
  -H "mcp-session-id: $SESSION" \
  -d '{"jsonrpc":"2.0","method":"tools/call","params":{"name":"fetch_workspace_docs","arguments":{"url":"https://developers.google.com/workspace/drive/api/guides/search-files"}},"id":3}'

Expected Behavior

fetch_workspace_docs should return the markdown content of the requested documentation page.

Actual Behavior

Returns:

{
  "result": {
    "content": [
      {
        "type": "text",
        "text": "No content found for the provided URL: https://developers.google.com/workspace/drive/api/guides/search-files"
      }
    ]
  }
}

URLs Tested (all fail)

• https://developers.google.com/workspace/drive/api/guides/search-files
• https://developers.google.com/workspace/drive/api/reference/rest/v3/files/list
• https://developers.google.com/gmail/api/guides/overview

Notes

• search_workspace_docs works correctly and returns relevant results
• list_workspace_docs works correctly
• Only fetch_workspace_docs appears broken
• The tool description says it "Fetches and returns the full content of a Workspace developer documentation page" but it never returns content