Langgraph Code Review

LangGraph Code Review

When reviewing LangGraph code, check for these categories of issues.

Anti-confabulation (gate 0 — runs before every other gate)

Before issuing any finding — flag a bug, anti-pattern, or improvement — you MUST echo the exact artifact you are judging, quoted from a source you read in this turn:

• The code finding: its file:line plus the cited code, read freshly now.
• The graph/state code under review: the StateGraph, node, edge, or state-schema snippet your finding depends on, quoted from the file you just read.

The artifact is the only source of truth. Never infer what you are reviewing from the branch name, the working directory, surrounding files, or recollection. If your mental model differs from the freshly read source, the source wins. A finding issued without a same-turn echo of its target is invalid — emit the echo first, or do not emit the finding.

This gate exists because an LLM under contextual priming will confidently flag code that is not in the file. It runs before the gates below.

Review gates (sequenced)

Complete in order. Each step has an objective pass condition before moving on.