| name | review-delta |
| description | Quick review of only changes since last commit using blast-radius detection. Token-efficient delta review. Use for fast iteration reviews during development, checking if recent edits broke anything, or reviewing a single commit. |
Review Delta
Execution context: Cross-skill script paths use ../ relative references.
Focused, token-efficient review of the most recent changes and their impact.
When to use this skill
User request → Which review skill?
├─ "check my changes" / "did I break anything?" → review-delta (this skill)
├─ "quick review" / single commit → review-delta
├─ Risk is LOW/MEDIUM (from code-review workflow) → review-delta
├─ Risk is HIGH → escalate to review-pr or /code-review workflow
├─ "review this PR" / merge readiness → review-pr
└─ Multiple commits against base branch → review-pr
- Quick review during active development (after each commit)
- Checking if recent edits introduced bugs
- Want a lighter review than full PR review
- Reviewing a single commit (not multi-commit PR)
For full PR reviews (multiple commits, merge readiness) → use [review-pr] instead.
How to use it
1. Get recent changes (auto-detect)
bash ../code-graph/scripts/blast-radius.sh
2. Read the risk level and follow escalation
- LOW: Skim changed files only. Check for obvious issues. Done.
- MEDIUM: Read changed files + direct callers. Check test gaps.
- HIGH: Escalate — recommend using
/code-review workflow instead.
3. Focus review on blast-radius output
For each changed file:
- Correctness: does the code do what it should?
- Style: follows project conventions?
- Callers: do upstream consumers need updates?
- Tests: does changed behavior have test coverage?
4. Report findings
## Delta Review
- **Summary**: <one line>
- **Risk level**: <from blast-radius>
- **Issues**: <list with file:line>
- **Test gaps**: <untested changed functions>
- **Blast radius**: <N files impacted>
Advantages over full PR review
- Examines only changed + impacted code (5-10x fewer tokens)
- Auto-detects changes from git diff (no args needed)
- Fast iteration: run after each commit during development
- Naturally escalates to full review when risk is HIGH
