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Arcaneum RDR Postmortem
17 RDR postmortems, 208 drift instances, one meta-lesson: specify interfaces not implementations, verify APIs against source code, and plan for the full scope including Day 2 ops.
Last updated on Feb 25, 2026
3 min read
Recommendation Decisioning Records
Introducing RDRs - specification documents that evolve during planning to prevent purpose drift and wasted implementation effort.
Last updated on Feb 25, 2026
4 min read