Problem

The system prompt was generating userTime (including day of week) via formatUserTime() but not using it in buildTimeSection(). This caused the agent to not know which day of the week it is without explicitly running the date command or session_status tool.

Solution

• Added userTime parameter to buildTimeSection() function signature
• Pass params.userTime from buildAgentSystemPrompt() to buildTimeSection()
• Display formatted time with day of week when userTime is available
• Fallback to session_status tool prompt when userTime not provided
• Filter out empty strings with .filter(Boolean)

Impact

• Reduces unnecessary tool calls (agent no longer needs to run date repeatedly)
• Improves agent context awareness from session start
• Better user experience (agent knows if it's Monday/Tuesday/etc. immediately)

Testing

Tested locally - system prompt now shows:

## Current Date & Time
Time zone: Asia/Jerusalem
Current time: Monday, February 2nd, 2026 — 8:34 PM
Use the session_status tool for updated time.

Previously only showed timezone without the formatted time.

Greptile Overview

Greptile Summary

This change threads userTime into the system prompt “Current Date & Time” section so the prompt can show a preformatted local timestamp (including day-of-week) when available, while keeping the existing session_status guidance as a fallback. The update is localized to src/agents/system-prompt.ts, adjusting buildTimeSection’s signature and the call site in buildAgentSystemPrompt, and uses .filter(Boolean) to omit empty lines.

Confidence Score: 5/5

• This PR is safe to merge with minimal risk.
• The change is small, localized to prompt-string construction, preserves the previous fallback behavior, and does not affect control flow beyond adding an optional line.
• No files require special attention

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