| name | review-delta |
| description | Review only changes since last commit using impact analysis. Token-efficient delta review with automatic blast-radius detection. |
| argument-hint | [file or function name] |
Review Delta
Perform a focused, token-efficient code review of only the changed code and its blast radius.
Token optimization: Before starting, call help(topic="graph") for the full actions reference. Use ONLY changed nodes + 2-hop neighbors in context.
Steps
-
Ensure the graph is current by calling graph(action="update").
-
Get review context by calling review(). This returns:
- Changed files (auto-detected from git diff)
- Impacted nodes and files (blast radius)
- Source code snippets for changed areas
- Review guidance (test coverage gaps, wide impact warnings, inheritance concerns)
-
Analyze the blast radius by reviewing the impacted_nodes and impacted_files in the context. Focus on:
- Functions whose callers changed (may need signature/behavior verification)
- Classes with inheritance changes (Liskov substitution concerns)
- Files with many dependents (high-risk changes)
-
Perform the review using the context. For each changed file:
- Review the source snippet for correctness, style, and potential bugs
- Check if impacted callers/dependents need updates
- Verify test coverage using
query(action="query", pattern="tests_for", target=<function_name>)
- Flag any untested changed functions
-
Report findings in a structured format:
- Summary: One-line overview of the changes
- Risk level: Low / Medium / High (based on blast radius)
- Issues found: Bugs, style issues, missing tests
- Blast radius: List of impacted files/functions
- Recommendations: Actionable suggestions
Advantages Over Full-Repo Review
- Only sends changed + impacted code to the model (5-10x fewer tokens)
- Automatically identifies blast radius without manual file searching
- Provides structural context (who calls what, inheritance chains)
- Flags untested functions automatically
