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Identify and safely remove dead, unused, and unreachable code from codebases
Passed 8 of 22 test cases with the skill, and 0 of 22 without it.
and 10 more in the full report
8 fixed0 passed either way14 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 8 test cases the skill fixed. Same model, same prompt, with and without the skill.
When structuring the 'functions' array inside the dead code analysis JSON payload for a detected uncalled helper in user_service.py at line 142, many developers default to keys like 'path', 'symbol_name', and 'line_number'. What exact property name must be used for the file path property in each function object?
| Checked | Without skill | With skill |
|---|---|---|
| Uses "file" as the property name for the file path in function items. | Missed | Passed |
| Uses camelCase naming convention rather than snake_case for function object property keys. | Missed | Passed |
| Includes explanation details describing why the function was flagged as dead code. | Missed | Passed |
The instructions your model reads when the skill loads.
Identifies and safely removes dead code, unused functions, unreachable code paths, and orphaned files from codebases to reduce complexity and maintenance burden.
Enable safe dead code removal for:
test cases passed, vs 0 / 22 without
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