processfork-langgraph
ProcessFork checkpointer for LangGraph. Full four-layer snapshots at every node boundary, not just LangGraph's state dict.
Install
pip install "processfork-langgraph[langgraph]"
Use
from langgraph.graph import StateGraph
from processfork_langgraph import ProcessForkCheckpointer
graph = StateGraph(MyState).compile(
checkpointer=ProcessForkCheckpointer(store="~/.processfork"),
)
graph.invoke({"input": "go"}, config={"configurable": {"thread_id": "demo"}})
The checkpointer surface mirrors langgraph.checkpoint.BaseCheckpointSaver
so existing code works unchanged. Each checkpoint is now a real
ProcessFork image: model + cache + world + effects + trace.
Forking a thread
from processfork_langgraph import fork_thread
forks = fork_thread(graph, thread_id="demo", n=12, explore="try alternatives")
for cid in forks:
print(cid)
fork_thread uses pf-merge's manifest-level fork: each branch points at
the same layer blobs (CoW; no copy) but has a unique fingerprint and a
single parents = [<source>] entry.
See agent_docs/integration-langgraph.md for the full spec.
1 maintainer
Metadata
1 maintainer
Release files for processfork-langgraph 1.0.1
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