Review Delta

This is a code review workflow that only looks at what changed since your last commit, plus everything those changes might break. It uses a code graph to trace dependencies and find the blast radius automatically, so you're not burning tokens on unrelated files. You get changed functions, their callers, inheritance chains, and test coverage gaps all in one context window. Useful when you want a review of your branch but don't want to feed your entire codebase into the model. The token savings are real, it just depends on having git history and building that graph first.

skills.sh installs: 1.2K
GitHub stars: 32.7K
last updated: Aug 21, 2026

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Install

$ npx -y skills add tirth8205/code-review-graph --skill review-delta --agent claude-code

Installs into .claude/skills of the current project.

Files

Review Delta

Review only the changed code and its blast radius.

Steps

Call get_minimal_context_tool(task="review changes"). If it returns status: not_ready, call build_or_update_graph_tool() and continue.
Call detect_changes_tool(detail_level="minimal") for risk-scored changed functions, test gaps and affected flows. Changes come from git diff against HEAD~1; if the argument names a file, pass it in changed_files.
Call get_review_context_tool() (standard detail: minimal returns no source and no review_guidance) when you need source snippets for the changed areas and review_guidance (untested functions, wide blast radius, inheritance changes).
For each untested high-risk function, confirm with query_graph_tool(pattern="tests_for", target="<function>").
Use detail_level="standard" only for a high-risk item the minimal output leaves unclear. Do not load whole files unless a snippet is not enough.