code-review-graph

A code-review tool that builds a structural map of a codebase and shows which files are likely affected by a change.

In plain words
What is it for?
It helps review changes across connected files by parsing code with Tree-sitter, storing the map in SQLite, and identifying the change's likely blast radius.
Why use it?
It reduces the need for an AI assistant to read an entire project, which can add noise and use more context on large codebases or monorepos, where one repository contains many related projects.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/vudovn/ag-kit/code-review-graph
Any agent
npx skills add vudovn/ag-kit --skill code-review-graph
Clone the repo
git clone --depth 1 https://github.com/vudovn/ag-kit

Made for: Claude Code, Codex.

Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,567 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00049 $0.02567
Opus 5 $0.00024 $0.01283
Sonnet 5 $0.00010 $0.00513
Haiku 4.5 $0.00005 $0.00257

Measured 3d ago against content hash 9e59161bbd8b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-review-graph scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/code-review-graph/SKILL.md · 307 lines

How it starts

The opening of the file, as written. The whole thing — 307 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Review Graph — Token-Efficient Codebase Context via MCP

Cut AI token usage substantially on large codebases by giving the AI a structural map instead of letting it read everything. Savings scale with codebase size — marginal on small projects, large on monorepos.

Overview

code-review-graph is an MCP server that uses Tree-sitter to parse your codebase into an AST graph stored in SQLite. When your AI assistant needs context for a task, it queries the graph first — getting only the files in the blast radius of your change — instead of reading every file in the directory.

Token Impact (illustrative — varies by codebase):

Codebase Type Pattern
Large monorepo (10K+ files) Biggest savings — graph reads a small fraction of files
Mid-size app (1-5K files) Meaningful reduction on multi-file changes
Small project (<200 files) Little benefit — graph overhead can exceed savings

Quality angle: scoping the AI to the blast radius reduces noise, which tends to improve review focus. Measure on your own repo rather than relying on a fixed multiplier.

Bootstrap Protocol (opt-in)

When invoked during /plan or standard usage on a mid-to-large project, check whether graph analysis is available before relying on it:

  1. Step 1: Check if the tool is installed: Get-Command code-review-graph (Windows) or which code-review-graph (macOS/Linux).
  2. Step 2: Check if a .code-review-graph/ directory exists in the workspace.
  3. Step 3: If installed but the index is missing, ask the user before running code-review-graph build (it scans the whole project).
  4. Step 4: If not installed and the project is large, ask the user: "Would you like to pip install code-review-graph and build a local map to cut token usage for this project?" Never install or run build without confirmation.

When to Use vs When to Skip

✅ Install it if:

  • Codebase is 500+ files
  • You make multi-file changes with cross-module dependencies
  • You spend $20+/month on AI assistant tokens
  • You work with monorepos, microservices, or cross-package TypeScript
  • You want better review quality in addition to cost savings

Read the full file on GitHub · 307 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 307 lines · 49 tokens per session scan A 9e59161bbd8b

Subscribe to this mod's changes

code-review-graph is a skill published in the GitHub repository vudovn/ag-kit (8,162 stars, last pushed 2d ago), licensed MIT. It adds 49 tokens to every session and 2,567 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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