PH5.5 — Diff between plan versions and I_DISPLACED #37

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opened 2026-09-11 09:02:17 +00:00 by bart · 0 comments

bart commented

2026-09-11 09:02:17 +00:00

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Row PH5.5 in docs/12-implementation-plan.md (branch, owned paths and doc section are defined there).

What to build

A planner compares two versions and sees added, removed, moved and retimed assignments; the validator reports jobs displaced by an override or refill (I_DISPLACED).

Acceptance criteria

/diff/{other} returns a typed diff for versions in the same chain and for published vs draft
Bad-plan fixture triggers I_DISPLACED
Diff is computed in a pure domain function with unit tests

Blocked by

#20 — Plan orchestration: snapshot builder, result writer, solver_run/plan_version lifecycle, publish/supersede
#19 — Validator: one rule per E_/W_/I_ code over snapshot and result

## Parent Row **PH5.5** in `docs/12-implementation-plan.md` (branch, owned paths and doc section are defined there). ## What to build A planner compares two versions and sees added, removed, moved and retimed assignments; the validator reports jobs displaced by an override or refill (`I_DISPLACED`). ## Acceptance criteria - [ ] `/diff/{other}` returns a typed diff for versions in the same chain and for published vs draft - [ ] Bad-plan fixture triggers `I_DISPLACED` - [ ] Diff is computed in a pure domain function with unit tests ## Blocked by - #20 — Plan orchestration: snapshot builder, result writer, solver_run/plan_version lifecycle, publish/supersede - #19 — Validator: one rule per E_/W_/I_ code over snapshot and result

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2026-09-11 09:02:17 +00:00

bart added a new dependency

2026-09-11 09:02:31 +00:00

#20 T-E — Plan orchestration: snapshot builder, result writer, solver_run/plan_version lifecycle, publish/supersede

bart added a new dependency

2026-09-11 09:02:31 +00:00

#19 T-D — Validator: one rule per E_/W_/I_ code over snapshot and result

bart referenced this issue

2026-09-11 09:02:32 +00:00