{"source":"semconv","version":"1.44.0","attribute":{"id":"gen_ai.tool.call.arguments","type":"any","stability":"development","brief":"Parameters passed to the tool call.","note":"> [!WARNING]\n> This attribute may contain sensitive information.\n\nIt's expected to be an object - in case a serialized string is available\nto the instrumentation, the instrumentation SHOULD do the best effort to\ndeserialize it to an object. When recorded on spans, it MAY be recorded as a JSON string if structured format is not supported and SHOULD be recorded in structured form otherwise.","examples":["{\n    \"location\": \"San Francisco?\",\n    \"date\": \"2025-10-01\"\n}\n"],"deprecated":{"reason":"uncategorized","note":"Moved to the [OpenTelemetry GenAI semantic conventions repository](https://github.com/open-telemetry/semantic-conventions-genai)."},"namespace":"gen_ai","definedIn":"model/gen-ai/deprecated/registry-deprecated.yaml","usedBy":[{"groupId":"span.gen_ai.execute_tool.internal","groupType":"span","requirementLevel":"opt_in"},{"groupId":"span.mcp.client","groupType":"span","requirementLevel":"opt_in"}]},"history":[{"version":"1.38.0","publishedAt":"2025-10-29T20:23:26Z","kind":"first-seen","detail":"Added as development.","severity":"informational"},{"version":"1.42.0","publishedAt":"2026-06-12T21:03:17Z","kind":"deprecated","detail":"Moved to the [OpenTelemetry GenAI semantic conventions repository](https://github.com/open-telemetry/semantic-conventions-genai).","severity":"notable"}],"replaces":[]}