====== 15.3 Handbook Approval before Coding ====== [[fxdemo:04-part:15-phase-0-developer-handbook-requirements:start | Go To Phase 0 Developer Handbook Requirements ]] The Phase 0 Developer Handbook must exist and receive approval before Phase 0 coding begins. This requirement applies to hand-authored source code, generated code, scripts, configuration artifacts, repository contributions, and implementation documentation that become part of the Phase 0 implementation baseline. Planning notes, experiments, or exploratory material may exist outside the implementation baseline only when the repository workflow clearly marks them as non-baseline material. Non-baseline material must not be confused with approved Phase 0 implementation artifacts. No Phase 0 implementation artifact should enter the implementation baseline unless the applicable handbook rules exist and reviewers can apply them. ---- © 2026 Dido Solutions, Inc. and Jackrabbit Consulting, Inc.