| name | langfuse-session-view |
| description | View Langfuse session details with all traces. Use when analyzing conversation flows, checking session costs, or debugging multi-turn interactions. |
| license | MIT |
| compatibility | Node.js 18+ (native fetch required) |
| metadata | {"author":"neuradex","category":"observability"} |
| allowed-tools | ["Bash(npx tsx *scripts/langfuse-session-view.ts*)"] |
Langfuse Session View
Display detailed information and all traces for a specific session.
Setup
Set the following environment variables before use:
| Variable | Required | Description |
|---|
LANGFUSE_PUBLIC_KEY | Yes | Langfuse public key |
LANGFUSE_SECRET_KEY | Yes | Langfuse secret key |
LANGFUSE_HOST or LANGFUSE_BASE_URL | No | Langfuse host URL (default: https://us.cloud.langfuse.com) |
When to Use
- Checking specific session details
- Analyzing conversation flows
- "Show me all traces for this session"
- Investigating by session ID
Commands
1. Get Session Details
npx tsx scripts/langfuse-session-view.ts <sessionId>
2. Specify Trace Count
npx tsx scripts/langfuse-session-view.ts <sessionId> --limit=100
3. JSON Output
npx tsx scripts/langfuse-session-view.ts <sessionId> --json
Output Example
Langfuse Session Detail
=======================
Session ID: se:9ed69537-5952-40ee-9d98-5e1197fc5726
Created: 2025-01-15 10:30:45
Project: project-123
Summary:
Total Traces: 74
Total Cost: $0.1234
Avg Latency: 856ms
Trace Types:
chunk-extraction: 70
chunking: 3
source-parse: 1
Traces (50 of 74):
----------------------------------------------------------------------------------------------------
Timestamp Name Latency Cost ID
----------------------------------------------------------------------------------------------------
2025-01-15 10:30:45 chunk-extraction:abc123 1234ms $0.0150 abc123...
2025-01-15 10:30:46 chunk-extraction:def456 856ms $0.0080 def456...
Fields
| Field | Description |
|---|
| Session ID | Session identifier |
| Created | Creation timestamp |
| Project | Project ID |
| Total Traces | Total number of traces in the session |
| Total Cost | Estimated total cost for the session |
| Avg Latency | Average processing time |
| Trace Types | Trace count by name |
