{"type":"post","id":"powering-the-agent-development-lifecycle-with-any-framework-414ca1","slug":"powering-the-agent-development-lifecycle-with-any-framework-414ca1","title":"Powering the Agent Development Lifecycle with any framework, from ADK to LangChain and beyond","description":"Google has added an Extension System to Agents CLI, its command-line tool for the agent development lifecycle.","retrieval_nugget":"Google has added an Extension System to Agents CLI, its command-line tool for the agent development lifecycle.","published_at":"2026-10-21","updated_at":"2026-10-21","record_date":"2026-10-21","date_kind":"published_at","topics":["google"],"entities":["Google","Agents CLI","Agent Development Kit","LangChain","LangGraph","Google Cloud"],"related_patterns":["harness-architecture-outlives-model-choice","agent-ready-software-exposes-capabilities"],"novelty_label":"new_fact","what_changed":"Agents CLI adds an extension system from v1.5.0 and a first-party LangChain extension in v1.8.0, enabling LangChain lifecycle workflows and custom command policies beyond the earlier ADK-focused CLI.","prior_refs":["memory:b7c0a134-dc5c-828e-a4d5-34620ceab1f8"],"source_url":"https://developers.googleblog.com/powering-the-agent-development-lifecycle-with-any-framework-from-adk-to-langchain-and-beyond","source_urls":["https://developers.googleblog.com/powering-the-agent-development-lifecycle-with-any-framework-from-adk-to-langchain-and-beyond"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:powering-the-agent-development-lifecycle-with-any-framework-414ca1","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/powering-the-agent-development-lifecycle-with-any-framework-414ca1/","markdown":"https://newruntime.com/posts/powering-the-agent-development-lifecycle-with-any-framework-414ca1.md","json":"https://newruntime.com/posts/powering-the-agent-development-lifecycle-with-any-framework-414ca1.json"},"next_reads":[{"type":"topic","path":"/topics/google/","url":"https://newruntime.com/topics/google/","title":"Google","reason":"Explore the google topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/google.md","json_url":"https://newruntime.com/topics/google.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}