# Postman CLI

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## Loop engineering: stop prompting, start looping

DevFeed: [Loop engineering: stop prompting, start looping](<https://devfeed.tech/articles/loop-engineering-stop-prompting-start-looping-12639.md>)

Original publisher: [Read original article](<https://blog.postman.com/loop-engineering-stop-prompting-start-looping/>)

Author: Anthony Viard

Published: 2026-09-08T16:00:00Z

Content type: article

Language: en

Sources: [Postman Blog](<https://devfeed.tech/sources/postman-blog.md>)

Topics: [Loop Engineering](<https://devfeed.tech/topics/loop-engineering.md>), [AI Agent](<https://devfeed.tech/topics/ai-agent.md>), [AI-assisted coding](<https://devfeed.tech/topics/ai-assisted-coding.md>), [API](<https://devfeed.tech/topics/api.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [agent](<https://devfeed.tech/tags/agent.md>), [agentic](<https://devfeed.tech/tags/agentic.md>), [agents](<https://devfeed.tech/tags/agents.md>), [ai](<https://devfeed.tech/tags/ai.md>), [ai-agents](<https://devfeed.tech/tags/ai-agents.md>), [ai-coding](<https://devfeed.tech/tags/ai-coding.md>), [api](<https://devfeed.tech/tags/api.md>), [api-testing](<https://devfeed.tech/tags/api-testing.md>), [blog](<https://devfeed.tech/tags/blog.md>), [code](<https://devfeed.tech/tags/code.md>), [coding-agents](<https://devfeed.tech/tags/coding-agents.md>), [developer](<https://devfeed.tech/tags/developer.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [general](<https://devfeed.tech/tags/general.md>), [guide](<https://devfeed.tech/tags/guide.md>), [idea](<https://devfeed.tech/tags/idea.md>), [loops](<https://devfeed.tech/tags/loops.md>), [model](<https://devfeed.tech/tags/model.md>), [post](<https://devfeed.tech/tags/post.md>), [postman-cli](<https://devfeed.tech/tags/postman-cli.md>), [tool](<https://devfeed.tech/tags/tool.md>), [verify](<https://devfeed.tech/tags/verify.md>), [work](<https://devfeed.tech/tags/work.md>)

### AI overview

This article explains loop engineering as a way to improve AI coding agent reliability. Instead of relying on a single prompt, the system repeatedly generates code, runs it against a real API or other source of truth, verifies the result, and decides whether to stop or continue. The article distinguishes this outer verification loop from the inner ReAct tool-use cycle and presents a reproducible setup for allowing an agent to correct its own mistakes.

### Source excerpt

Stop prompting your AI agent, start looping. A guide to loop engineering: wire a real API call in as the oracle so generated code stops guessing. The post Loop engineering: stop prompting, start looping appeared first on Postman Blog.