Individual skill
langchain-content-blocks
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plugins/saas-packs/langchain-py-pack/skills/langchain-content-blocks/SKILL.md
Source commit 0500b275e963c027f6b410e8c49c0446945c574e
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- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- No
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Not checked yet
- Last checked
- Nov 12, 2026
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Repository context
- Repository stars (not skill ratings)
- 2,917
- Repository last updated
- Nov 12, 2026
- License
- MIT
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- ai Repository topic
- automation Repository topic
- claude-code Repository topic
- devops Repository topic
- mcp Repository topic
- ai-agents Repository topic
- anthropic Repository topic
- claude-code-plugins Repository topic
- developer-tools Repository topic
- llm Repository topic
- saas Declared skill tag
- langchain Declared skill tag
- langgraph Declared skill tag
- python Declared skill tag
- langchain-1.0 Declared skill tag
- content-blocks Declared skill tag
- multimodal Declared skill tag
- tool-use Declared skill tag
- engineering Derived category
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Read excerpt
# LangChain Content Blocks (Python)
## Overview
On Claude, `AIMessage.content` is `list[dict]` even for pure text — so any
code from an OpenAI-first tutorial that calls `message.content.lower()` or
`message.content.split()` crashes with `AttributeError: 'list' object has
no attribute 'lower'` on the first production Claude call (P02).
Multi-modal code that works on GPT-4o breaks on Claude because pre-1.0
image-block shapes differed across providers (P64). Multi-turn Claude
replay with extended thinking fails with
`anthropic.BadRequestError: missing signature` when prior `thinking`
blocks are stripped. Forced `tool_choice` prevents
`stop_reason="end_turn"` and loops forever (P63).