OTEL_METRICS_INCLUDE_SESSION_ID

Updated October 13, 2026 by Alex Sorokoletov

OTEL_METRICS_INCLUDE_SESSION_ID is a Claude Code environment variable. Its release history is not tracked here. It is listed in the official reference.

How to set it

For one session, export it in the shell that starts Claude Code:

export OTEL_METRICS_INCLUDE_SESSION_ID=<value>
claude

To apply it to every session, add it to the env object of a settings file:

// ~/.claude/settings.json
{
  "env": {
    "OTEL_METRICS_INCLUDE_SESSION_ID": "<value>"
  }
}

Related variables

• OTEL_METRICS_INCLUDE_ACCOUNT_UUID
• OTEL_METRICS_INCLUDE_ENTRYPOINT
• OTEL_METRICS_INCLUDE_REPOSITORY
• OTEL_METRICS_INCLUDE_RESOURCE_ATTRIBUTES
• OTEL_METRICS_INCLUDE_VERSION
• CLAUDE_CODE_ENABLE_FEEDBACK_SURVEY_FOR_OTEL: Re-enables the session quality survey for enterprise deployments with OTEL enabled.
• CLAUDE_CODE_OTEL_CONTENT_MAX_LENGTH: Caps the length of content attributes on OpenTelemetry spans and logs; the truncation function takes the minimum of this value (default 60 KB) and the standard OTEL attribute-length limits, appending a "[TRUNCATED — Content exceeds NKB limit]" marker.
• CLAUDE_CODE_OTEL_DIAG_STDERR

Frequently asked questions

All variables, searchable: Claude Code environment variables.