langchain-langgraph-basics
Build a correct LangGraph 1.0 StateGraph \u2014 typed TypedDict state\ \ with reducers,\nnodes, edges, compile, and recursion budgets \u2014 without hitting\ \ the silent-termination\nand state-replacement traps. Use when writing your first\ \ LangGraph StateGraph,\ndiagnosing why a graph halted without reaching END, or\ \ picking recursion_limit.\nTrigger with \"langgraph statgraph\", \"langgraph basics\"\ , \"GraphRecursionError\",\n\"langgraph conditional edges\".\n"
npx skills add jeremylongshore/claude-code-plugins-plus-skills --skill langchain-langgraph-basics --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# LangChain LangGraph Basics (Python) ## Overview A conditional edge whose router returns a string that is not in `path_map` halts the graph without reaching `END`. No exception. No log line. The invocation just returns whatever state existed at the halt point — pain-catalog entry P56, and the single most common reason a newly wired `StateGraph` "almost works." The sibling pain: `Command(update={"
What does the langchain-langgraph-basics skill do?
Build a correct LangGraph 1.0 StateGraph \u2014 typed TypedDict state\ \ with reducers,\nnodes, edges, compile, and recursion budgets \u2014 without hitting\ \ the silent-termination\nand state-replacement traps. Use when writing your first\ \ LangGraph StateGraph,\ndiagnosing why a graph halted without reaching END, or\ \ picking recursion_limit.\nTrigger with \"langgraph statgraph\", \"langgraph basics\"\ , \"GraphRecursionError\",\n\"langgraph conditional edges\".\n"
How do I install it?
Run `npx skills add jeremylongshore/claude-code-plugins-plus-skills --skill langchain-langgraph-basics --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From jeremylongshore/claude-code-plugins-plus-skills, a repository with 2,596 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.