Can I post a bug report or ask for help with my setup in r/LangChain?
No, the community is for building with LangChain, LangGraph, LangSmith, or Deep Agents, not for product support or bug reports.
Subreddit guides
r/LangChain rules, stats, and what to post
A source-backed Rankhog guide to r/LangChain: public rules, community context, posting fit, and startup-promotion risk before you publish.
By Anthony Riera, founder and operator of Rankhog.
Subreddit guides combine public Reddit source URLs, captured rules, visible verification dates, and Rankhog's account-safety workflow.
Current public stats
- Members
- 107,539
- Verified
- September 18, 2026
- Category
- AI builders, operators, and researchers
Rules can change, so Rankhog keeps verification dates and the original public Reddit sources visible.
Rule summary
- Respect All Members: Treat others how you'd like to be treated, and assume good intent. This is a space for collective optimism, not harsh critique. Constructive feedback is welcome; personal attacks, harassment, and disrespectful behavior are not. Repeat violations will lead to a ban.
- No solicitation or self-promotion: This community is designed for developers to share their work, ideas, and learnings. It is not meant for lead generation by vendors or recruiters, nor is it a place for competitors to advertise their products or services. Any vendors, recruiters, or competitors soliciting members will be permanently banned from the community.
- Keep posts on topic: Post about building with LangChain, LangGraph, LangSmith, or Deep Agents: projects, questions, and things you've learned. This subreddit is not for product support. For bugs or help with your setup, please use the LangChain Forum at forum.langchain.com instead of posting in this subreddit.
Works well
- A post sharing a project you built with LangGraph, focused on the architecture and what you learned, with no link to a product page.
- A technical question about using LangSmith for tracing, framed as a builder asking other builders for their approach.
- A writeup of a lesson learned while building agents with LangChain, explaining the problem and your solution without naming or linking your company.
- A comparison of approaches for Deep Agents based on your own experiments, shared as a learning for the community.
Avoid
- Posting bug reports or setup help here instead of using the LangChain Forum at forum.langchain.com.
- Promoting your product or service as a vendor, recruiter, or competitor.
- Personal attacks or disrespectful behavior toward other members.
- Posting off-topic content unrelated to LangChain, LangGraph, LangSmith, or Deep Agents.
What r/LangChain Is For
This community is for developers who want to share their work, ideas, and learnings around LangChain, LangGraph, LangSmith, and Deep Agents. The public description frames it as a space for companies to own and govern their intelligence through an open agent engineering ecosystem. Based on the rules, the people posting here are builders working on projects, questions, and lessons learned with those tools.
Rules That Matter Before Posting
The rule called Respect All Members asks you to treat others well, assume good intent, and keep feedback constructive, with repeat violations leading to a ban. The rule named No solicitation or self-promotion is the one that decides whether a marketing-adjacent post survives, because it bans vendors, recruiters, and competitors from lead generation and says any solicitation will lead to a permanent ban. The rule Keep posts on topic matters too, since it limits posts to building with LangChain, LangGraph, LangSmith, or Deep Agents and sends bugs and setup help to the LangChain Forum instead.
What To Post
A good post here is a genuine developer contribution about building with LangChain, LangGraph, LangSmith, or Deep Agents. You could share a project you built, a question about agent engineering, or something you learned while working with these tools. The key is to frame it as a builder sharing knowledge, not as a vendor promoting a product. If you are a founder, talk about the technical problem you solved and how you used these tools, not about your company or what you sell.
What To Avoid
Avoid any form of solicitation or self-promotion, because the No solicitation or self-promotion rule says vendors, recruiters, and competitors will be permanently banned. Do not post bug reports or ask for help with your setup, since the Keep posts on topic rule sends those to the LangChain Forum at forum.langchain.com. Avoid personal attacks, harassment, or disrespectful behavior, as the Respect All Members rule says repeat violations will lead to a ban. Stay away from off-topic posts that are not about building with LangChain, LangGraph, LangSmith, or Deep Agents.
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Common questions about r/LangChain
Can I promote my product or service in r/LangChain?
No, the No solicitation or self-promotion rule bans vendors, recruiters, and competitors from soliciting members, and violations lead to a permanent ban.
What kind of feedback is allowed in r/LangChain?
Constructive feedback is welcome, but personal attacks, harassment, and disrespectful behavior are not, and repeat violations will lead to a ban.
What topics are on topic in r/LangChain?
Post about projects, questions, and learnings related to LangChain, LangGraph, LangSmith, or Deep Agents.
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