• What: Given a small argument graph (nodes/edges), OpenLine returns a verifiable receipt (claim/because/but/so + guardrails + telemetry). • Why: Tracing is descriptive; receipts are normative. They make agent steps auditable & safe by default. • How: stdlib Python; MCP JSON-RPC stub; LangGraph node; schema + validator; optional signing step; GitHub Actions + Pages.Repo: https://github.com/terryncew/openline-coreDemo: https://terryncew.github.io/COLE-Coherence-Layer-Engine-/nca...Would love feedback on the guard checks and the OLP schema—where should it grow?Comments URL: https://news.ycombinator.com/item?id=45326245Points: 1# Comments: 0