mirror of
https://github.com/luongnv89/claude-howto.git
synced 2026-07-11 23:26:32 +02:00
Luong NGUYEN
45 lines
1.2 KiB
Markdown
45 lines
1.2 KiB
Markdown
# Change: Fix Context Usage Hook Token Calculation
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## Why
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The context-usage hook (Stop event) always reports 0 tokens because of a bug in line 68 of `context-usage.py`:
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```python
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estimated_tokens = estimate_tokens(str(total_chars))
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```
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This converts the integer `total_chars` (e.g., `156789`) to a string `"156789"` and then calculates tokens from that 6-character string, resulting in `6 // 4 = 1` token instead of `156789 // 4 = ~39,197` tokens.
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**Current behavior:**
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```
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Stop says: Context: ~0/200,000 tokens (100.0% remaining)
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```
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**Expected behavior:**
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```
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Stop says: Context: ~39,197/200,000 tokens (80.4% remaining)
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```
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## What
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Fix the token calculation bug in the context-usage.py example hook:
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1. Remove the erroneous `str()` conversion
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2. Calculate estimated tokens directly from character count
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## Scope
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- **Files affected:**
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- `06-hooks/README.md` - Update the example code
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- User's `~/.claude/hooks/context-usage.py` - Not managed by this repo, but fix will be documented
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## Out of Scope
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- Improving transcript parsing logic
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- Adding more sophisticated token estimation
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- Adding new hook features
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## Risks
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- **Low:** Simple bug fix with clear expected behavior
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- Users who copied the broken example will need to update their hook manually
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