Rebuild OpenBoost as a programmable v1 boosting foundation

.github/workflows/docs.yml

@@ -1,38 +1,21 @@
-name: Deploy Documentation
+name: Build v1 Documentation
 
 on:
   push:
-    branches:
-      - main
-    paths:
-      - 'docs/**'
-      - 'src/**'
-      - 'mkdocs.yml'
+    branches: [main]
+    paths: ['docs/v1/**', 'mkdocs.yml']
+  pull_request:
+    paths: ['docs/v1/**', 'mkdocs.yml']
   workflow_dispatch:
 
 permissions:
-  contents: write
+  contents: read
 
 jobs:
-  deploy:
+  build:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - name: Setup Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.11'
-
-      - name: Install uv
-        uses: astral-sh/setup-uv@v4
-
-      - name: Install dependencies
-        run: |
-          uv sync
-          uv pip install mkdocs-material "mkdocstrings[python]" mkdocs-gen-files mkdocs-literate-nav mkdocs-section-index
-
-      - name: Build and deploy
-        run: uv run mkdocs gh-deploy --force
+      - uses: astral-sh/setup-uv@v4
+      - run: uv sync --locked
+      - run: uv run --no-sync mkdocs build --strict

.github/workflows/gpu-tests.yml

@@ -1,62 +1,16 @@
-name: GPU Verification
+name: v1 GPU Verification Pending
 
 on:
   workflow_dispatch:
-  schedule:
-    # Nightly at 09:17 UTC — CUDA paths have no other CI coverage
-    - cron: "17 9 * * *"
 
 permissions:
   contents: read
 
-concurrency:
-  group: openboost-modal-gpu-verification
-  cancel-in-progress: false
-
 jobs:
-  modal-credentials:
-    name: Check Modal credentials
+  unavailable:
     runs-on: ubuntu-latest
-    outputs:
-      available: ${{ steps.check.outputs.available }}
-
     steps:
-      - name: Check whether Modal is configured
-        id: check
-        env:
-          MODAL_TOKEN_ID: ${{ secrets.MODAL_TOKEN_ID }}
-          MODAL_TOKEN_SECRET: ${{ secrets.MODAL_TOKEN_SECRET }}
-        shell: bash
+      - name: Explain current v1 boundary
         run: |
-          if [[ -n "$MODAL_TOKEN_ID" && -n "$MODAL_TOKEN_SECRET" ]]; then
-            echo "available=true" >> "$GITHUB_OUTPUT"
-          else
-            echo "available=false" >> "$GITHUB_OUTPUT"
-            echo "::notice::Skipping Modal GPU verification because repository secrets are not configured."
-          fi
-
-  modal-gpu-tests:
-    needs: modal-credentials
-    if: needs.modal-credentials.outputs.available == 'true'
-    runs-on: ubuntu-latest
-    timeout-minutes: 45
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.12"
-
-      - name: Set up uv
-        uses: astral-sh/setup-uv@v4
-
-      - name: Install locked dependencies
-        run: uv sync --locked --extra bench
-
-      - name: Run CUDA verification on Modal
-        env:
-          MODAL_TOKEN_ID: ${{ secrets.MODAL_TOKEN_ID }}
-          MODAL_TOKEN_SECRET: ${{ secrets.MODAL_TOKEN_SECRET }}
-        run: uv run modal run tests/modal_gpu_tests.py::ci
+          echo "No v1 CUDA implementation exists. Restore real-device verification at F3; reference tests are not GPU validation."
+          exit 1

.github/workflows/publish.yml

@@ -1,46 +1,16 @@
-name: Publish to PyPI
+name: v1 Publishing Unavailable
 
 on:
-  release:
-    types: [published]
+  workflow_dispatch:
 
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    env:
-      OPENBOOST_BACKEND: cpu
-    steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v4
-      - run: uv sync --extra test --extra sklearn
-      - run: uv run pytest tests/ --tb=short
+permissions:
+  contents: read
 
-  # Bare-install smoke test: no sklearn/test extras, so transitively-pulled
-  # dependencies (e.g. scipy via scikit-learn) cannot mask a missing runtime dep.
-  bare-install:
-    runs-on: ubuntu-latest
-    env:
-      OPENBOOST_BACKEND: cpu
-    steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v4
-      - run: uv venv && uv pip install .
-      - run: |
-          uv run --no-project python -c "
-          import numpy as np
-          import openboost as ob
-          X = np.random.rand(200, 5); y = X[:, 0] + np.random.rand(200)
-          m = ob.NaturalBoostNormal(n_trees=5); m.fit(X, y); m.predict_interval(X)
-          print('bare install OK')
-          "
-
-  publish:
-    needs: [test, bare-install]
+jobs:
+  unavailable:
     runs-on: ubuntu-latest
-    permissions:
-      id-token: write
     steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v4
-      - run: uv build
-      - uses: pypa/gh-action-pypi-publish@release/v1
+      - name: Explain current v1 boundary
+        run: |
+          echo "The rebuilt package is not release-ready. Implement and verify v1 gates before restoring release publication."
+          exit 1

.github/workflows/unit-tests.yml

@@ -1,4 +1,4 @@
-name: Tests
+name: v1 Reference Checks
 
 on:
   push:
@@ -7,97 +7,20 @@ on:
     branches: [main]
 
 jobs:
-  # Fast tests: <3 min, runs on every PR
-  fast-tests:
+  references:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
         python-version: ["3.10", "3.12"]
-
     steps:
       - uses: actions/checkout@v4
-
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+      - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-
-      - name: Install OpenMP runtime (macOS)
-        if: runner.os == 'macOS'
-        run: |
-          brew install libomp
-
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install -e ".[test,sklearn]"
-          pip install "xgboost>=2.0"
-
-      - name: Lint with ruff
-        run: |
-          pip install "ruff>=0.4"
-          ruff check src/openboost/
-
-      - name: Run fast tests (CPU backend)
-        env:
-          OPENBOOST_BACKEND: "cpu"
-        run: |
-          pytest tests/ -v --tb=short -m "not slow and not benchmark"
-
-  # Full tests: includes slow tests, runs after fast tests pass
-  full-tests:
-    runs-on: ubuntu-latest
-    needs: fast-tests
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Set up Python 3.12
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.12"
-
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install -e ".[test,sklearn]"
-          pip install "xgboost>=2.0"
-
-      - name: Run all tests (CPU backend)
-        env:
-          OPENBOOST_BACKEND: "cpu"
-        run: |
-          pytest tests/ -v --tb=short
-
-      - name: Run documentation examples (CPU backend)
-        env:
-          OPENBOOST_BACKEND: "cpu"
-        run: |
-          python scripts/run_doc_examples.py
-
-  # Performance regression check: main branch only
-  performance-check:
-    runs-on: ubuntu-latest
-    if: github.ref == 'refs/heads/main'
-    needs: full-tests
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Set up Python 3.12
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.12"
-
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install -e ".[test,sklearn]"
-          pip install "xgboost>=2.0"
-
-      - name: Performance regression check
-        env:
-          OPENBOOST_BACKEND: "cpu"
-        run: |
-          python benchmarks/check_performance.py
+      - uses: astral-sh/setup-uv@v4
+      - run: uv sync --locked --extra test
+      - run: uv run --no-sync ruff check src/openboost tests/v1 tests/conftest.py
+      - name: Run current v1 references, not retired production tests
+        run: uv run --no-sync pytest tests/ -n 0 -q
+      - run: uv build

.gitignore

@@ -221,4 +221,5 @@ logs/
 
 # Benchmark results (generated)
 benchmarks/results/*.json
+benchmarks/results/scoringbench*/
 tasks/