How AppFolio transformed property management workflows with Realm-X, built using LangGraph and LangSmith

See how AppFolio's AI-powered copilot Realm-X has saved property managers over 10 hours per week. Learn how they improved Realm-X's performance 2x using LangSmith and built an agent architecture with LangGraph.

Agent or tool: LangChain
Topic: Software Development
Reported on: Blog (LangChain)
Added: 2026-11-11

Why it matters

Coding agents are moving from autocomplete to doing whole tasks: reading a codebase, making a plan and changing many files. This case is a concrete example of where that works in practice. It is one of 221 sightings filed under Software Development on Agent Sightings (number 52 by interest), and one of 25 involving LangChain.

How you could try it

Here is a reusable prompt, written by us in our own words, that captures the task. Paste it into LangChain or any similar agent and adjust the details to your situation.

I want a coding agent to plan first, work on a branch, and show me the diff before anything is merged. The tool in the source case was LangChain.

Saved

Tip: Work on a fresh branch, ask for a plan before edits, and review the diff and test results before merging.

Source

Read the original first-hand account on Blog (LangChain): https://langchain.com/blog/customers-appfolio. Our summary is a paraphrase; details are in the source.

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