{"type":"post","id":"deep-agents-js-1-15-0-brings-skill-504bef","slug":"deep-agents-js-1-15-0-brings-skill-504bef","title":"Deep Agents JS 1.15.0 brings skill pinning to the JavaScript SDK","description":"Deep Agents JS 1.15.0 adds named skill pinning and lazy loading of a skill’s tools to LangChain’s JavaScript agent SDK.","retrieval_nugget":"Deep Agents JS 1.15.0 adds named skill pinning and lazy loading of a skill’s tools to LangChain’s JavaScript agent SDK. The change matters because builders can make a selected procedure available for the next model turn without placing every skill instruction and tool definition in the initial agent context.","published_at":"2026-10-28","updated_at":"2026-10-28","record_date":"2026-10-28","date_kind":"published_at","topics":["evals","context-engineering"],"entities":["LangChain","Deep Agents JS","deepagents@1.15.0","@langchain/anthropic","@langchain/openai"],"related_patterns":["skills-become-portable-capability-layer","agent-ready-software-exposes-capabilities"],"novelty_label":"new_fact","what_changed":"Deep Agents JS 1.15.0 adds skill pinning in the JavaScript SDK, extending the previously reported skills update.","prior_refs":["memory:24ddaa87-f995-89a2-a9a2-322e800cca2c","memory:d433abc2-89b0-88b2-ad9f-9fb1a43314cc"],"source_url":"https://github.com/langchain-ai/deepagentsjs/releases/tag/deepagents%401.15.0","source_urls":["https://github.com/langchain-ai/deepagentsjs/releases/tag/deepagents%401.15.0"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:deep-agents-js-1-15-0-brings-skill-504bef","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/deep-agents-js-1-15-0-brings-skill-504bef/","markdown":"https://newruntime.com/posts/deep-agents-js-1-15-0-brings-skill-504bef.md","json":"https://newruntime.com/posts/deep-agents-js-1-15-0-brings-skill-504bef.json"},"next_reads":[{"type":"topic","path":"/topics/evals/","url":"https://newruntime.com/topics/evals/","title":"Evals","reason":"Explore the evals topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/evals.md","json_url":"https://newruntime.com/topics/evals.json"},{"type":"topic","path":"/topics/context-engineering/","url":"https://newruntime.com/topics/context-engineering/","title":"Context Engineering","reason":"Explore the context-engineering topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/context-engineering.md","json_url":"https://newruntime.com/topics/context-engineering.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"}]}