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plog proxy spawns an MCP server as a child process, intercepts all JSON-RPC messages, and logs every tool call to the audit trail.

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Usage

plog proxy --command "npx @modelcontextprotocol/server-filesystem /tmp"
plog proxy --command "npx @modelcontextprotocol/server-filesystem /tmp" --agent-id my-agent

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Flags

FlagDefaultDescription
--command—Required. MCP server command to spawn
--agent-idmcp-proxyAgent identifier for audit events
--labels—Comma-separated key=value label pairs
--db~/.provenlog/events.dbLocal SQLite database path
See MCP Proxy for more details.