# Coding Challenge #134 - Agentic Engineering Graph

DevFeed: [Coding Challenge #134 - Agentic Engineering Graph](<https://devfeed.tech/articles/coding-challenge-134-agentic-engineering-graph-29209.md>)

Original publisher: [Read original article](<https://codingchallenges.substack.com/p/coding-challenge-134-agentic-engineering>)

Author: John Crickett

Published: 2026-08-29T08:01:12Z

Content type: tutorial

Language: en

Sources: [Coding Challenges](<https://devfeed.tech/sources/coding-challenges.md>)

Topics: [agentic-coding](<https://devfeed.tech/topics/agentic-coding.md>), [Orchestration](<https://devfeed.tech/topics/orchestration.md>), [coding](<https://devfeed.tech/topics/coding.md>), [MCP Server](<https://devfeed.tech/topics/mcp-server.md>), [Langgraph](<https://devfeed.tech/topics/langgraph.md>), [MCP](<https://devfeed.tech/topics/mcp.md>), [Chaos Engineering](<https://devfeed.tech/topics/chaos-engineering.md>), [ide](<https://devfeed.tech/topics/ide.md>)

Tags: [agent](<https://devfeed.tech/tags/agent.md>), [agentic](<https://devfeed.tech/tags/agentic.md>), [agentic-coding](<https://devfeed.tech/tags/agentic-coding.md>), [agentic-engineering](<https://devfeed.tech/tags/agentic-engineering.md>), [ci](<https://devfeed.tech/tags/ci.md>), [code](<https://devfeed.tech/tags/code.md>), [distributed-systems](<https://devfeed.tech/tags/distributed-systems.md>), [langgraph](<https://devfeed.tech/tags/langgraph.md>), [news](<https://devfeed.tech/tags/news.md>), [orchestration](<https://devfeed.tech/tags/orchestration.md>), [review](<https://devfeed.tech/tags/review.md>), [sonarqube](<https://devfeed.tech/tags/sonarqube.md>), [systems](<https://devfeed.tech/tags/systems.md>)

## AI overview

A coding challenge guides readers through building an agentic engineering graph: a small orchestration system that runs an autonomous coding loop of planning, coding, testing, review, and retry. It uses scripts and files for dispatch and persisted state, adds a deterministic Sonar static-analysis quality gate, and then replaces it with an AI-augmented review node using the SonarQube MCP Server.

## Source excerpt

This challenge is to build your own agentic engineering graph.