[Bug] Context display math error: Used + Free ≠ Total (155k shown instead of 200k)
Status Fixed / completed
Maintainer reply None cached
Activity 6 comments · opened Oct 4, 2025 · closed Oct 10, 2025
Bug Description
The /context command displays incorrect token accounting where the numbers don't add up to the total 200k budget.
Current Behavior
Context Usage 64k/200k tokens (32%)
⛁ ⛀ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛝ ⛝
⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛁ System prompt: 3.1k tokens (1.6%)
⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛁ System tools: 12.0k tokens (6.0%)
⛝ ⛁ ⛀ ⛁ ⛀ ⛶ ⛶ ⛶ ⛶ ⛶ ⛝ Reserved: 45.0k tokens (22.5%)
⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ [autocompact + output tokens]
⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛁ MCP tools: 2.4k tokens (1.2%)
⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛁ Custom agents: 442 tokens (0.2%)
⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛁ Memory files: 1.5k tokens (0.7%)
⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛁ Messages: 8 tokens (0.0%)
⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ Free space: 91k (45.3%)The Problem
Used + Free ≠ Total:
- Used: 64k (32%)
- Free: 91k (45.3%)
- Total: 64k + 91k = 155k ❌
This should equal 200k, but it only adds up to 155k tokens.
Root Cause
The 45k "Reserved" tokens appear to be counted twice:
- Included in the 64k "Used" total
- Also subtracted again when calculating "Free space"
Expected Behavior
Either:
- Option A: Show "Used: 19k" (excluding reserved) + "Reserved: 45k" + "Free: 136k" = 200k
- Option B: Show "Used: 64k" (including reserved) + "Free: 136k" = 200k
The current display is mathematically incorrect and confusing.
Environment
- Claude Code version: Latest
- Model: claude-sonnet-4-5-20250929
- Context budget: 200k tokens
Related Issues
- Possibly related to #8456 (Reserved category clarification)
- Duplicate reports: #8479, #8362 (both closed)
6 Comments
Wow. Claude Code filed this for me just by me asking it to! Nice work @claude 👍
Found 3 possible duplicate issues:
This issue will be automatically closed as a duplicate in 3 days.
🤖 Generated with Claude Code
@claude - Please stop this auto-closing in 3 days. All those quoted issues are also closed as duplicates or due to be closed as duplicates. This is a bug in your bug tracking/management system. Where is the issue that someone is actually going to fix this bug on? How do I escalate this to a human please?
✅ Confirmed Fixed
The token accounting math error has been resolved. The numbers now add up correctly to 200k.
Current Output (as of 2025-10-10):
Math Check:
What Changed:
The issue is resolved. Closing.
Closing as fixed.
This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.