Monitoring changedmonitoring-usage
Nearest release: v2.1.268, published 2 hours before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
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459459| `user.account_uuid` | Account UUID (when authenticated) | `OTEL_METRICS_INCLUDE_ACCOUNT_UUID` (default: true) |
460460| `user.account_id` | Account ID in tagged format matching Anthropic admin APIs (when authenticated), such as `user_01BWBeN28...` | `OTEL_METRICS_INCLUDE_ACCOUNT_UUID` (default: true) |
461461| `user.id` | Random anonymous identifier generated on first run and persisted in `~/.claude.json`. It contains no personal information and is not derived from your Claude account. Deleting the file produces a new unrelated value on next run. | Always included |
462| `user.email` | User email address (when authenticated via OAuth) | Always included when available |
462| `user.email` | User email address, from your sign-in or, in a [cloud session](/docs/en/claude-code-on-the-web), from the session's own credentials | Always included when available |
463463| `terminal.type` | Terminal type, such as `iTerm.app`, `vscode`, `cursor`, or `tmux` | Always included when detected |
464464| Keys from `OTEL_RESOURCE_ATTRIBUTES` | Custom attributes you set, such as `department` or `team.id`. See [Multi-team organization support](#multi-team-organization-support) | `OTEL_METRICS_INCLUDE_RESOURCE_ATTRIBUTES` (default: true) |
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12041204Claude Code retries failed API requests internally and emits a single `claude_code.api_error` event only after it gives up, so the event itself is the terminal signal for that request. Intermediate retry attempts are not logged as separate events.
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1206The `attempt` attribute on the event records the total number of attempts. `CLAUDE_CODE_MAX_RETRIES` defaults to 10 and is capped at 15; as of v2.1.199, `CLAUDE_CODE_RETRY_WATCHDOG` raises the default and removes the cap. When the request exhausts all retries on a transient error, `attempt` equals one more than that effective limit: 11 by default, and never more than 16 unless the watchdog is set. A lower value indicates a non-retryable error such as a `400` response.
1206The `attempt` attribute on the event records the total number of attempts. `CLAUDE_CODE_MAX_RETRIES` defaults to 10 and is capped at 15. On v2.1.199 or later, you can set `CLAUDE_CODE_RETRY_WATCHDOG` to raise the default and remove the cap.
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1208When the request exhausts all retries on a transient error, `attempt` equals one more than that effective limit: 11 by default, and never more than 16 unless the watchdog is set. A lower value indicates a non-retryable error such as a `400` response, or a cause with its own smaller retry budget. For example, Claude Code retries a failure to load AWS or Google Cloud credentials at most twice.
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12081210To distinguish a session that recovered from one that stalled, group events by `session.id` and check whether a later `api_request` event exists after the error.
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12101212### Event analysis
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12271229### Attribute actions to users
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1229The [standard attributes](#standard-attributes) on each event include the authenticated user's identity: `user.email`, `user.account_uuid`, `user.account_id`, and `organization.id` when signed in with a Claude account, plus `user.id` and the per-session `session.id`. `user.id` is an installation-scoped identifier, except on [Claude apps gateway](/docs/en/claude-apps-gateway) sessions, where it is the IdP subject from the gateway-issued token.
1231The [standard attributes](#standard-attributes) on each event include the authenticated user's identity: `user.email`, `user.account_uuid`, `user.account_id`, and `organization.id` when signed in with a Claude account or, in a [cloud session](/docs/en/claude-code-on-the-web), when the session's own credentials carry them, plus `user.id` and the per-session `session.id`. `user.id` is an installation-scoped identifier, except on [Claude apps gateway](/docs/en/claude-apps-gateway) sessions, where it is the IdP subject from the gateway-issued token.
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12311233MCP tool calls, Bash commands, and file edits are therefore attributed to the developer who started the session. Claude Code doesn't act under a separate service account; the identity recorded on each event is the developer's own Claude account, or the developer's IdP identity on a [Claude apps gateway](/docs/en/claude-apps-gateway) session.
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