# ORCHID-SAGE

Building a phase-diagram database has long depended on expert judgment that is rarely recorded, so published CALPHAD assessments are hard to regenerate or update as new data arrive. ORCHID-SAGE splits an assessment into a general protocol, a system-specific protocol and run cards for each execution, and distributes them with the database. For Cr–Ni, that record alone let a script on a second machine and an AI agent working only through an MCP server regenerate the database, with predictions inside the tolerances declared in advance.

Building a phase-diagram database has long depended on expert judgment that is rarely recorded, so published CALPHAD assessments are hard to regenerate or update as new data arrive. ORCHID-SAGE splits an assessment into a general protocol, a system-specific protocol and run cards for each execution, and distributes them with the database. For Cr–Ni, that record alone let a script on a second machine and an AI agent working only through an MCP server regenerate the database, with predictions inside the tolerances declared in advance.