Problemsby GlyphLangChain lock-in makes switching costly
2 posts from 2 people2d activeSteady, +1 this weekunverified
Posts per day
The posts behind it
[Bug / Feature]: Duplicate OpenTelemetry GenAI CLIENT spans & metrics when used with instrumented agent frameworks
### Problem When LiteLLM's `OpenTelemetryV2` integration is used alongside an OpenTelemetry GenAI framework instrumentation (e.g., Agno, LangChain, DSPy, Smolagents), a single LLM call emits **two nested `CLIENT` spans and double-counted metrics** - one from the outer framework...
langchain-openrouter: add a beta Runnable for OpenRouter's Decisions API (decision / System One models)
...`ChatOpenRouter` therefore can't reach them. ### Existing workaround (tested) `langchain-typesafe` with `TYPESAFE_BASE_URL=https://openrouter.ai/api` and an OpenRouter key works for Jev models with langchain-typesafe==0.0.1a3. It calls `POST /api/v1/systemone`. So this isn't...
Companies and products named
About this problem
Evidence
2 posts from 2 people in 2 places, about 1 a week over 16 days. Mostly on langchain-ai/langchain, BerriAI/litellm. Tools named alongside: Anthropic, OpenAI, Perplexity, DeepSeek.
Frustration Frustration 3 of 3· Seen on GitHub issues
How it was grouped
Posts that state a pain and match the "vendor-lock" rule about LangChain. First post Oct 22, 2026, latest Nov 6, 2026. Unverified: fewer than 3 posts, or one person or place only. Method
The same problem elsewhere
Vendor lock-in makes switching tools costly
18 posts from 18 people on GitHub issues, Hacker News, Reddit.
Claude Code lock-in makes switching costly
14 posts from 14 people on GitHub issues, Hacker News, Reddit.
Kubernetes lock-in makes switching costly
13 posts from 10 people on GitHub issues.
GitHub lock-in makes switching costly
12 posts from 11 people on GitHub issues.
Claude lock-in makes switching costly
10 posts from 10 people on GitHub issues, Hacker News, Reddit.
ChatGPT lock-in makes switching costly
6 posts from 6 people on GitHub issues, Reddit, Hacker News.
Codex lock-in makes switching costly
5 posts from 5 people on GitHub issues.
NVIDIA lock-in makes switching costly
5 posts from 5 people on GitHub issues, Hacker News, Bluesky.
PyTorch lock-in makes switching costly
4 posts from 4 people on GitHub issues.
PostgreSQL lock-in makes switching costly
3 posts from 3 people on Stack Overflow, Mastodon.
LlamaIndex lock-in makes switching costly
3 posts from 3 people on GitHub issues.
llama.cpp lock-in makes switching costly
3 posts from 3 people on GitHub issues.
Other LangChain problems
LangChain users keep filing bugs
Top post: "langchain 1.4.0: any after_model middleware using documented `jump_to=tools` bypasses the HITL", one of 27 posts from 23 people on GitHub issues, Reddit.
LangChain upgrades break working setups
10 posts from 10 people on GitHub issues, Reddit.
Trouble with LangChain agent
Top post: "langchain-classic: importing a moved agent from `agent_toolkits` raises `ValueError` instead of `ImportError`", one of 8 posts from 7 people on GitHub issues, Reddit, Stack Overflow.
RAG on LangChain returns irrelevant or missing context
8 posts from 7 people on Reddit, GitHub issues, Stack Overflow.
LangChain agents loop, stall or fail midway
5 posts from 5 people on Reddit, GitHub issues.
LangChain rate limits and usage caps block work
4 posts from 3 people on GitHub issues.
Trouble with LangChain test
Top post: "langchain: MCP adapter test asserts a POSIX-only error message, fails on Windows where the drive letter", one of 4 posts from 4 people on GitHub issues.
Trouble with LangChain agents
Top post: "Is it normal for a LangGraph supervisor to consume as many tokens as all 8 agents combined? How can we", one of 4 posts from 4 people on Reddit.
LangChain error messages are cryptic
3 posts from 2 people on GitHub issues.
LangChain vulnerabilities are hard to triage and patch
3 posts from 1 person on GitHub issues. Unverified.
Prompt injection makes LangChain features unsafe
3 posts from 2 people on Reddit, GitHub issues.
LangChain fails to return valid structured output
2 posts from 2 people on GitHub issues. Unverified.
History