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Get Started Free →borghei/focused-fix
This skill should be used when the user asks to "fix a bug with minimal changes", "analyze change scope for a bugfix", "find the minimal set of files to change", "do a focused bugfix", or "scope a minimal repair".
Passed 19 of 23 test cases with the skill, and 14 of 23 without it.
and 6 more in the full report
7 fixed12 passed either way2 still failing2 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 7 test cases the skill fixed. Same model, same prompt, with and without the skill.
We need to run a scope analysis for a style rendering issue across stylesheet files in `./frontend`. We want to limit the analyzer to `.css` and `.scss` files. What flag specifies these file types?
| Checked | Without skill | With skill |
|---|---|---|
| Uses the flag --extensions with .css and .scss. | Missed | Passed |
The instructions your model reads when the skill loads.
Category: Engineering Domain: Debugging & Maintenance
The Focused Fix skill enforces a disciplined minimal-change approach to bug fixing. Instead of refactoring or improving code during a bugfix, it identifies the smallest possible change set that resolves the issue. This reduces risk, simplifies code review, and prevents scope creep.
Before scoping the fix, confirm these inputs. If any is unknown or vague, ASK — do not assume:
--path/--extensions)Stop rule: ask only the 2-3 that most change the output. If the user says "just draft it," proceed and list your assumptions at the top of the artifact.
# Analyze a bug description to identify minimal change scope
python scripts/change_scope_analyzer.py --bug "Login fails when email has + character" --path ./src
# Analyze with JSON output
python scripts/change_scope_analyzer.py --bug "API returns 500 on empty array input" --path ./src --format json
# Analyze with specific file extensions
python scripts/change_scope_analyzer.py --bug "CSS overflow on mobile" --path ./src --extensions .css .scss .html
test cases passed, vs 14 / 23 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.