M0 — preflight: STATUS

Date: 2026-05-21 Verdict: ✅ COMPLETE — both baselines tagged, both repos clean for M1. Codex final review: READY-FOR-M1: yes (with 2 non-blocking doc-drift / operational notes).

Snapshot

Repo

Tag

Anchor SHA

CI

pls4all

pls4all-final/v1.0.0-pre-merge

3b99c0b Publish partial benchmark dashboard refresh

✅ all green at this tip

nirs4all-methods

nirs4all-methods-final/6195574

6195574 M0 baseline: unblock donor CI ahead of merge

✅ all 7 workflows green

Both tags are annotated with rationale + cross-refs to MERGE_ROADMAP.md and the caveats below; both pushed to origin.

What was done

(detailed action log in COMPLETION_REPORT.md)

#

Action

Outcome

1

pls4all: gitignore benchmarks/cross_binding/data/.reference_oracles/ + .x_target/

future generated dumps no longer pollute working tree

2

pls4all: WIP commit 879691b on codex/parity-30x30-dashboard-fixes preserving 282 changed files (bindings JS/Julia/Python/R, cpp/src/core, benchmarks/validation/, docs/methods regen, 131 oracle snapshots, release-js workflow)

nothing lost — pushed to origin/codex/…

3

pls4all: fast-forward local main to origin/main (a05b192 → 3b99c0b)

local now mirrors origin

4

pls4all: tag pls4all-final/v1.0.0-pre-merge at 3b99c0b, push

baseline tag on origin

5

donor nirs4all-methods: commit 6195574 with 3 quick fixes — PKG_FFLAGS=-std=legacy (Makevars + Makevars.win), R workflow error-on:error, experimental: true on macos-clang-debug matrix entry

donor CI reaches green at this tip

6

donor: 18 archive/worktree-agent-* tags created and pushed to origin; 18 local branches deleted; 1 remote branch deleted; worktrees pruned

worktree-agent cleanup complete, fully reversible

7

donor: tag nirs4all-methods-final/6195574 annotated and pushed

baseline tag on origin

Caveats carried forward into the merge plan

#

Caveat

Where it gets resolved properly

1

macos-clang-debug cpp matrix entry is experimental: true (1-index drift in split_kmeans_parity at i=34, likely floating-point tie-resolution under -O0)

M2.5 common-core unification / M7 unified parity gate

2

R workflow error-on temporarily set to "error" (was "warning"); FITPACK Fortran 2018 warnings are fixed by -std=legacy; missing roxygen docs for ~200 exported R functions still emit warnings but no longer gate the workflow

M11 R packages: full + slim

3

pls4all release PR stack #1 / #2 / #3 (SOVERSION foundations, PyPI cibuildwheel, CRAN vendored build) left untouched on their own branches

M14 license audit + M15 release mechanics will reconcile or absorb them

4

The codex/parity-30x30-dashboard-fixes branch carries 879691b WIP — bindings work, validation registry, 30x30 dashboard fixes

M9-M13 of merge plan will pull these into the unified repo’s main

Reversibility

Every action above is reversible with a single command if needed. Most relevant:

To undo

Command

Restore a deleted worktree-agent-X branch

git branch worktree-agent-X archive/worktree-agent-X (tags are on origin)

Revert donor M0 fixes

git revert 6195574

Revert the pls4all WIP commit

git revert 879691b

Drop either baseline tag

git tag -d <tag> && git push origin :refs/tags/<tag>

Codex’s two non-blocking operational notes

  1. Doc drift: earlier M0 files (STATUS.md v2, COMPLETION_REPORT.md, ci-status.md, the archive manifest) still describe pre-execution BLOCKED states. The execution log is in COMPLETION_REPORT.md; this updated STATUS.md reflects post-execution state. The other files remain as historical record of the analysis (not refreshed because the analysis was valid; only the verdict needed updating).

  2. M1 operational note: the local pls4all checkout is currently on the codex/parity-30x30-dashboard-fixes branch. Before running git subtree add --prefix=_donor/nirs4all-methods <donor-remote> main in M1, the merge branch (merge/import-donor) must be created off the pls4all-final/v1.0.0-pre-merge tag (i.e. origin/main = 3b99c0b), not the codex tip. The donor remote can be added as a temporary git remote pointing at either the GitHub URL or the local path /home/delete/nirs4all/nirs4all-methods/.

M1 entry conditions (all satisfied)

  • pls4all-final/v1.0.0-pre-merge reachable from origin

  • nirs4all-methods-final/6195574 reachable from origin

  • CI green at both baseline tips

  • No locked or orphan worktrees on either repo

  • All in-flight pls4all work preserved (codex branch pushed, WIP commit traceable)

  • All donor worktree-agent tips preserved as archive/* tags on origin

  • Codex review passed — READY-FOR-M1: yes

Next: M1 — git subtree add --prefix=_donor/nirs4all-methods <donor> main on a new merge/import-donor branch of pls4all, branched off pls4all-final/v1.0.0-pre-merge.