Add support for looking up traces by trace ID

[dcramer]

Feature Request

Add the ability to look up a trace by its trace ID to get a high-level overview and link to view trace details in Sentry.

Use Case

Users often have a trace ID from logs or error reports and need to quickly:

1. Get a high-level overview of the trace (duration, services involved, error status)
2. Get a direct link to view the full trace details in Sentry

Proposed Solution

Create a new MCP tool (e.g., get_trace_details) that:

• Accepts a trace ID as input
• Queries the Sentry API to fetch trace information
• Returns:
  • Trace overview (start time, duration, number of spans)
  • Services/projects involved
  • Error status
  • Direct link to view the trace in Sentry UI

Example Usage

User: "Show me trace abc123def456"
Assistant: [calls get_trace_details with trace_id="abc123def456"]
Returns: 
- Started: 2025-01-22 10:30:15
- Duration: 2.3s
- Spans: 15
- Services: frontend, api, database
- Status: Error in api service
- View details: https://sentry.io/organizations/my-org/performance/trace/abc123def456/

Implementation Notes

• The Sentry API endpoint for traces is: /api/0/organizations/{org}/events-trace/{trace_id}/
• Should handle cases where trace ID is not found
• Consider adding support for partial trace IDs