# Source / Provenance

Harvested from obra/superpowers (MIT, Copyright (c) 2025 Jesse Vincent) at commit a21956e48c13 on 2026-06-17.

## Source path
- `skills/systematic-debugging/root-cause-tracing.md` -> `SKILL.md`
- `skills/systematic-debugging/find-polluter.sh` -> `find-polluter.sh` (the test-pollution bisection helper the SKILL.md references)

## Adaptations (ClaudeTools house style)
- Added YAML frontmatter (`name: root-cause-tracing` + a one-line `description:`) because the source file had none.
- ASCII typography normalization: 4 non-ASCII characters replaced (em-dash `-` -> `-`; unicode arrows `->` and `<-` -> ASCII).
- No emojis were present in the source.
- No content was reworded; methodology preserved verbatim apart from the normalizations above.

## Note
- The SKILL.md references a bisection helper `find-polluter.sh` "in this directory" - it IS now included (fetched from the same MIT source). Its 4 echo emojis (search/warning/target/check) were replaced with ASCII markers (`[*]`/`[WARNING]`/`[FOUND]`/`[OK]`) per house style; `bash -n` clean.