Context buffer not clearing with /clear or /new commands

[Expelz]

Description

The buffer persistently shows 38.4k tokens (24% of context window) and cannot be cleared using the /clear or /new commands.

Steps to Reproduce

1. Use GitHub Copilot CLI and accumulate buffer content

2. Attempt to clear buffer using /clear command

3. Alternatively, try /new command to start fresh session
4. Observe that buffer remains at 38.4k tokens (24%)

Expected Behavior

• /clear command should clear the buffer and reset token count
• /new command should start a new session with empty buffer

Actual Behavior

• Buffer remains at 38.4k tokens despite using /clear or /new commands
• Unable to free up context window space

Environment

• GitHub Copilot CLI Version: 0.0.406
• Operating System: macOS (Darwin)
• Date: 2026-02-10

Impact

This limits the available context window for new interactions, reducing from 100% to 76% available capacity.

Additional Context

The persistent buffer content appears to be stuck and is not affected by session management commands.

[examon]

This has been fixed in v1.0.4. The status line context window percentage was incorrectly using cumulative token totals across all API calls, causing it to inflate over time and not reset properly after /clear or /new. It now uses per-call token counts, so the percentage accurately reflects actual context usage. Note that a baseline of ~24% after clearing is expected - that's the system prompt and tool definitions that exist in every session. If you're still seeing issues, please feel free to reopen.