CLAUDE_CODE_DATADOG_FLUSH_INTERVAL_MS

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_DATADOG_FLUSH_INTERVAL_MS is a Claude Code environment variable: Datadog metrics flush interval (ms). Present since v2.1.69 or earlier and still present in v2.1.294. It is not in the official reference.

Status	Present in v2.1.294
Added	Present since v2.1.69 or earlier
Category	Telemetry
Official docs	Not listed

How to set it

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

export CLAUDE_CODE_DATADOG_FLUSH_INTERVAL_MS=<value>
claude

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

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

Related variables

CLAUDE_CODE_DD_ERROR_TRACKING_FLUSH_INTERVAL_MS
CLAUDE_CODE_BYOC_ENABLE_DATADOG: Opt-in Datadog telemetry for BYOC (Bring Your Own Cloud) Bedrock/Vertex deployments.
CLAUDE_CODE_OTEL_FLUSH_TIMEOUT_MS: OpenTelemetry flush timeout; default 5000ms.
CLAUDE_CODE_GZIP_DATADOG_LOGS
CLAUDE_CODE_PERFETTO_WRITE_INTERVAL_S
CLAUDE_CODE_DISABLE_FEEDBACK_SURVEY: Survey prompts.
CLAUDE_CODE_ENABLE_FEEDBACK_SURVEY_FOR_OTEL: Re-enables the session quality survey for enterprise deployments with OTEL enabled.
CLAUDE_CODE_ENABLE_TELEMETRY: Enable telemetry collection.

Frequently asked questions

What does CLAUDE_CODE_DATADOG_FLUSH_INTERVAL_MS do?

Datadog metrics flush interval (ms)

Which Claude Code version has CLAUDE_CODE_DATADOG_FLUSH_INTERVAL_MS?

Present since v2.1.69 or earlier and still present in v2.1.294.

How do I set CLAUDE_CODE_DATADOG_FLUSH_INTERVAL_MS?

Export it before starting Claude Code (export CLAUDE_CODE_DATADOG_FLUSH_INTERVAL_MS=value), or add it to the "env" object in ~/.claude/settings.json to apply it to every session.

All variables, searchable: Claude Code environment variables.