gpd-revise-phase

To revise a completed research phase without losing history, supersede the original phase and generate a decimal replacement that inherits valid context while updating decisions, artifacts, and downstream references.

Updating downstream references during phase supersession requires recording the change in state and ROADMAP artifacts, ensuring the replacement phase inherits context while adjusting subsequent plans across the research workflow.

You need to create a decimal replacement phase when later insights require revisiting earlier completed phases, allowing you to adjust downstream plans while preserving the original artifacts for auditability and reproducibility.

Superseding a completed phase does not delete original artifacts; it marks the phase as superseded and documents the action in SUPERSEDED.md to preserve historical records for auditability and traceability.

Documenting phase supersession for auditability involves recording the reason for the change, marking the original phase superseded, and logging the transition in SUPERSEDED.md alongside updated STATE.md and ROADMAP.md artifacts.

You can update ROADMAP.md and STATE.md artifacts when replacing a superseded phase, as the workflow automatically reflects the supersession and generates a replacement phase with inherited context to align downstream plans.