[BUG] Status line not refreshed after /new — the statusline command still receives stale session data (token counts, context usage, transcript path) from the previous conversation after running /new.

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

when i create a new session /new (while working on a previous one), the status line doesn't reset the fields (cost, turns etc)

What Should Happen?

i expect the status line to be reset (0 cost, 0 turns, 0 ctx)

Error Messages/Logs

the statusline isn't reset when using /new

⏺ claude-code-guide(Statusline reset on /new)
  ⎿  Done (4 tool uses · 21.5k tokens · 8s)
  (ctrl+o to expand)

⏺ Let me look at your statusline setup to understand the issue.

⏺ Searched for 1 pattern, read 2 files (ctrl+o to expand)

⏺ This is a Claude Code bug, not something in your script. Your statusline script is fully stateless — it reads the JSON payload from stdin each invocation and computes everything fresh. So when /new starts a new conversation but the
  statusline still shows the old context %, turn count, and cost, it means Claude Code isn't sending updated/reset data to the statusline command after /new.

  You can report this at https://github.com/anthropics/claude-code/issues — the gist is:

  Status line not refreshed after /new — the statusline command still receives stale session data (token counts, context usage, transcript path) from the previous conversation after running /new.

  As a workaround, you could add a check in your script for the transcript file's age or size to detect a fresh session, but that's a hack — the real fix needs to happen in Claude Code itself.

Steps to Reproduce

create a statusline containing cost, ctx, # of turns
start a new session after being in one (/new)
look at the statusline

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.63

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

_No response_