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273273**`claude_code.hook`**
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275This span appears only when detailed beta tracing is active, which requires `ENABLE_BETA_TRACING_DETAILED=1` and `BETA_TRACING_ENDPOINT`. Set the pair in your shell, user settings, or managed settings; both variables are ignored in [project and local settings](/docs/en/settings-reference#variables-claude-code-ignores-in-env). `CLAUDE_CODE_ENHANCED_TELEMETRY_BETA` alone doesn't produce it.
275This span appears only when detailed beta tracing is active, which requires `ENABLE_BETA_TRACING_DETAILED=1` and `BETA_TRACING_ENDPOINT`, a pair that also [changes where your logs and traces go](/docs/en/env-vars#variables). Set the pair in your shell, user settings, or managed settings; both variables are ignored in [project and local settings](/docs/en/settings-reference#variables-claude-code-ignores-in-env). `CLAUDE_CODE_ENHANCED_TELEMETRY_BETA` alone doesn't produce it.
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277277In interactive CLI sessions, detailed beta tracing also requires your organization to be allowlisted for the feature. Agent SDK and non-interactive `-p` sessions don't require allowlisting.
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