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langchain-openentity

RuthlessSchemaGuard for LangChain: middleware and HTTP transport guard that raise OpenEntitySchemaViolation on malformed tool and API responses, a dead-loop breaker, and an optional signed ledger reporter.

pip install langchain-openentity
from langchain_openentity import RuthlessSchemaGuard

guard = RuthlessSchemaGuard()
guard.register("get_pulls", list[Pull])
guard.guard_http()
agent = create_agent(model, tools=[get_pulls], middleware=[guard])  # first in the list

Full documentation, the rule table and the ledger settings: https://github.com/moltbot-den/openentity/tree/main/integrations/langchain

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