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DeepAgents Adds Rubrics to Define and Enforce Agent Completion Goals

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Original postHarrison Chase#739
Sydney Runkle@sydneyrunkle

we just shipped support for rubrics in deepagents ✅

give your agent a clear definition of what "done" looks like, and force it to run in a loop until said goal is complete

this is similar to /goal in claude code, but works for any agent (not just a coding agent)

10:17 AM · Jun 8, 2026 · 5.6K Views
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Users praise the new documentation for DeepAgents rubric support because it offers clear guidance on middleware configuration for goal-based agent loops.

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LangChain OSS@LangChain_OSS

Rubrics are even more flexible than /goal

You can define a custom subagent for the grading, including custom tools, prompt, and iteration limits.

Try it out and let us know what you think!

Sydney Runkle@sydneyrunkle

we just shipped support for rubrics in deepagents ✅

give your agent a clear definition of what "done" looks like, and force it to run in a loop until said goal is complete

this is similar to /goal in claude code, but works for any agent (not just a coding agent)

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Anuj@byanujpatel

@sydneyrunkle Sydney can you direct me some resources for Sandboxing for agent to read about and implement in project.

Definetely gonna test this new feat.

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Sydney Runkle@sydneyrunkle

great new docs by @sseshadri43

https://docs.langchain.com/oss/python/deepagents/rubric#configure-the-middleware

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Mason Daugherty@masondrxy

@byanujpatel @sydneyrunkle is this helpful? https://docs.langchain.com/oss/python/deepagents/sandboxes

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