{"ts":"2026-08-22T19:04:11.512+00:00","run_id":"…","event":"tool_call","name":"update_record","user":"admin","auth_mode":"service-account","transport":"stdio","table":"incident","sys_id":"9d385017c611228701d22104cc95c371","data_keys":["state"],"tags":["table","write"],"outcome":"ok","duration_ms":212.4} ``` ### Write confirmation (opt-in) With `--write-confirm`, the three destructive tools fetch the record's current values and ask the user before writing: - **Claude Code** (stdio, handshake-era protocol) and **Cursor** render the prompt as a dialog (`elicitation/create`). *Decline* stops the write; the assistant is told not to retry. - **2026-07-28 clients** get the same prompt as a multi round-trip `InputRequiredResult`; the server never sends one to a client that has not declared elicitation. - **Claude Desktop / Cowork, claude.ai connectors and headless runs** cannot show the prompt (Desktop answers with a synthetic *cancel*). They receive a `confirmation_required` error carrying the preview; the assistant shows it and re-runs with `confirm=true`. It is off by default because the MCP client's own permission prompt is the primary human-in-the-loop, and because automation cannot answer a dialog. Enable it where an AI Steward wants a second gate. ## Architecture ```mermaid graph TD CC["MCP Client"] subgraph SERVER["FastMCP 4.0"] TT["table_tools (6)"] CT["cmdb_tools (5)"] ST["system_tools (3)"] UT["update_set_tools (5)"] RS["resources (5)"] SNR["make_sn_request"] end subgraph AUTH["Auth + HTTP"] AM["auth_manager"] AR["api_request"] end SN["ServiceNow Instance"] CC -->|"stdio / Streamable HTTP"| SERVER TT --> SNR CT --> SNR ST --> SNR UT --> SNR RS --> SNR SNR --> AR AM -.->|"credentials"| AR AR -->|"REST API"| SN ``` ## Configuration Add to your MCP client config — copy the snippet for your tool:

Claude Code

```bash claude mcp add servicenow -- uvx mcp-server-servicenow \ --instance-url https://your-instance.service-now.com \ --auth-type basic --username admin --password your-password ```

Claude Desktop

Add to `~/Library/Application Support/Claude/claude_desktop_config.json`: ```json { "mcpServers": { "servicenow": { "command": "uvx", "args": ["mcp-server-servicenow"], "env": { "SERVICENOW_INSTANCE_URL": "https://your-instance.service-now.com", "SERVICENOW_AUTH_TYPE": "basic", "SERVICENOW_USERNAME": "admin", "SERVICENOW_PASSWORD": "your-password" } } } }

ServiceNow MCP Server

Installation