CLAUDE_CODE_ENABLE_FEEDBACK_SURVEY_FOR_OTEL

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_ENABLE_FEEDBACK_SURVEY_FOR_OTEL is a Claude Code environment variable: Re-enables the session quality survey for enterprise deployments with OTEL enabled. Backs the v2.1.136 changelog bullet explicitly. If your org collects Claude Code session quality signals through OpenTelemetry, set this to route feedback through the same pipeline rather than a separate channel. Added between v2.1.128 and v2.1.138 and still present in v2.1.294. It is listed in the official reference.

How to set it

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

export CLAUDE_CODE_ENABLE_FEEDBACK_SURVEY_FOR_OTEL=<value>
claude

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

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

Release notes that mention it

• Claude Code v2.1.143 — 27 New Env Vars, /goal, Agent View, and a Free Model Upgrade

Related variables

• CLAUDE_CODE_DISABLE_FEEDBACK_SURVEY: Survey prompts.
• CLAUDE_CODE_BYOC_ENABLE_DATADOG: Opt-in Datadog telemetry for BYOC (Bring Your Own Cloud) Bedrock/Vertex deployments.
• CLAUDE_CODE_ENABLE_TELEMETRY: Enable telemetry collection.
• 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
• CLAUDE_CODE_OTEL_FLUSH_TIMEOUT_MS: OpenTelemetry flush timeout; default 5000ms.
• CLAUDE_CODE_OTEL_HEADERS_HELPER_DEBOUNCE_MS: Debounce for OTEL headers helper.
• CLAUDE_CODE_OTEL_SHUTDOWN_TIMEOUT_MS: OpenTelemetry shutdown timeout; default 2000ms.

Frequently asked questions

All variables, searchable: Claude Code environment variables.