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.