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---
name: response-timestamps
description: Automatically adds timestamps and execution duration to all Claude responses
type: guardrail
enforcement: suggest
priority: high
---
# Response Timestamp Guardrail
## Purpose
Ensure all Claude responses include start timestamp, end timestamp, and execution duration for tracking and accountability.
## Rules
### At Response Start
Begin every response with:
```
🕒 Response Started: [YYYY-MM-DD HH:MM:SS TIMEZONE]
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
```
### At Response End
End every response with:
```
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
🕒 Response Completed: [YYYY-MM-DD HH:MM:SS TIMEZONE]
⏱️ Execution Duration: [X minutes Y seconds]
```
### Format Requirements
- Use ISO 8601 format: `YYYY-MM-DD HH:MM:SS TIMEZONE`
- Always include timezone (PST, UTC, EST, UTC, etc.)
- Calculate duration from start to completion
- Use emojis for visual clarity (🕒 for time, ⏱️ for duration)
- Include separator lines for visual distinction
### Example
```
🕒 Response Started: 2025-12-07 14:30:45 PST
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
[Response content here]
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
🕒 Response Completed: 2025-12-07 14:32:18 PST
⏱️ Execution Duration: 1 minute 33 seconds
```
## Exceptions
None - this applies to ALL responses without exception.
