evr for LangChain
io.github.brienbounded/evr
Checks agent traces for evidence-readiness: verifies evidence is present, not that it is true.
client:LangChain
transport:stdio
runtime:pypi
Install evr in LangChain
pip install langchain-mcp-adapters
from langchain_mcp_adapters.client import MultiServerMCPClient
client = MultiServerMCPClient({
"evr": {
"transport": "stdio",
"command": "uvx",
"args": ["evidence-readiness"],
}
})
tools = await client.get_tools()
get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs