/.github/workflows/ci.yml

name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:

# Cancel a still-running CI for the same ref when a new push supersedes it —
# avoids burning runner-hours on stale commits during active PR iteration.
# Never cancel on main: a run there should always finish (e.g. for the
# scorecard/coverage artifacts it produces), even if another push lands.
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}

permissions:
  contents: read

env:
  CARGO_TERM_COLOR: always
  RUSTFLAGS: -Dwarnings
  # CI must be hermetic: never let tests download the embedding model
  # (~90 MB) in the background. Without this, the #551 auto-activation can
  # load the engine mid-suite and slow tarpaulin past its timeout.
  LEAN_CTX_EMBEDDINGS_AUTO_DOWNLOAD: "0"

jobs:
  test:
    name: Test
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
    runs-on: ${{ matrix.os }}
    # --test-threads=1 (env-race legacy, v3.3.5) serializes ~70 binaries that
    # now include heavy property/fuzz/benchmark suites (#291, #493, #551) —
    # well beyond 90 min on hosted runners. Parallelization is tracked
    # separately; until then the gate gets the time it actually needs.
    #
    # Tried switching to cargo-nextest (rust/.config/nextest.toml already
    # exists and documents the same env-race for 3 known binaries via a
    # `serial-state` test-group). Reverted: nextest's default parallelism
    # (test-threads = -4) surfaced several more tests with hidden wall-clock
    # timing assumptions (e.g. core::cache::tests::hebbian_eviction_bonus_is_wired
    # depends on two calls landing in the same real-time 500ms window) that a
    # `max-threads=1` test-group does NOT fix — that only serializes tests
    # *within* the group against each other, it doesn't protect them from
    # being scheduling-delayed by the many *other* tests still running in
    # parallel elsewhere on the same runner. Revisit once those tests are
    # made robust to scheduling jitter (or the burst window is made
    # injectable for tests) rather than papering over it with test-groups.
    timeout-minutes: 180
    env:
      # ~60 integration-test binaries each statically link the full lib
      # (tree-sitter ×18, rten, aws-lc, resvg, …). With default full debug
      # info that is 25-40 GB and the ubuntu runner dies with ENOSPC / the
      # linker with SIGBUS. Line tables keep file:line in panic backtraces
      # at a fraction of the size.
      CARGO_PROFILE_DEV_DEBUG: line-tables-only
      CARGO_PROFILE_TEST_DEBUG: line-tables-only
      # property_compression alone took 8012s serialized on ubuntu (87% of
      # the job) with proptest's default 256 cases — and pushed Windows past
      # the 180-min timeout. 64 cases keep the properties exercised on every
      # push at a quarter of the cost; local runs keep the full default.
      PROPTEST_CASES: 64
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
      - name: Ensure toolchain is active
        shell: bash
        run: |
          CARGO_HOME="${CARGO_HOME:-$HOME/.cargo}"
          export PATH="$CARGO_HOME/bin:$PATH"
          rustup default stable
          cargo --version
          echo "$CARGO_HOME/bin" >> $GITHUB_PATH
      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
        with:
          workspaces: rust -> target

      # ---- Windows: MSYS2 + GNU target + jemalloc -------------------------
      # The default MSVC toolchain can't build jemalloc (autotools mismatch).
      # We switch to the GNU target with MSYS2/MinGW and pre-build jemalloc.
      # See .github/actions/windows-jemalloc for the gory details.
      - name: Setup MSYS2 and MinGW
        if: runner.os == 'Windows'
        uses: msys2/setup-msys2@e9898307ac31d1a803454791be09ab9973336e1c # v2
        with:
          msystem: MINGW64
          update: true
          install: base-devel mingw-w64-x86_64-toolchain
          path-type: inherit

      - name: Install Rust GNU target
        if: runner.os == 'Windows'
        uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
        with:
          targets: x86_64-pc-windows-gnu

      - name: Build jemalloc + dummy liballoc.a (Windows only)
        if: runner.os == 'Windows'
        id: jemalloc
        uses: ./.github/actions/windows-jemalloc

      - name: Free disk space
        if: runner.os == 'Linux'
        shell: bash
        run: |
          sudo rm -rf /usr/share/dotnet /usr/local/lib/android /opt/ghc \
            /opt/hostedtoolcache/CodeQL /usr/local/.ghcup /usr/share/swift \
            /usr/local/share/powershell /usr/local/share/chromium \
            /usr/local/share/boost /usr/lib/jvm /usr/local/julia* || true
          sudo docker system prune -af --volumes >/dev/null 2>&1 || true
          df -h /
      - name: Run tests
        working-directory: rust
        shell: bash
        run: |
          if [[ "${{ runner.os }}" == "macOS" ]]; then
            CARGO="${CARGO_HOME}/bin/cargo"
          else
            CARGO="cargo"
          fi
          if [[ "${{ runner.os }}" == "Windows" ]]; then
            JEMALLOC_OVERRIDE="${{ steps.jemalloc.outputs.jemalloc-override }}" \
            CARGO_TARGET_X86_64_PC_WINDOWS_GNU_RUSTFLAGS="-L ${{ steps.jemalloc.outputs.dummy-dir }}" \
            "$CARGO" test --target x86_64-pc-windows-gnu --all-features -- --test-threads=1
          else
            "$CARGO" test --all-features -- --test-threads=1
          fi

      # #581: lock in the parallel BM25 (incremental) rebuild win against silent
      # regression. Timing is only meaningful on a quiet, single-threaded runner,
      # so the gate is env-opt-in (no-op in the matrix above) and runs once here.
      - name: BM25 build-time regression gate (#581)
        if: runner.os == 'Linux'
        working-directory: rust
        shell: bash
        env:
          LEAN_CTX_PERF_GATE: "1"
        run: cargo test --all-features --lib -- --test-threads=1 parallel_incremental_rebuild_perf_gate --nocapture

  clippy:
    name: Clippy
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
        with:
          components: clippy
      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
        with:
          workspaces: rust -> target
      - name: Run clippy
        working-directory: rust
        run: cargo clippy --all-features -- -D warnings
      # Maintainability gate (#660): no Rust file grows past 1500 LOC
      # (legacy files are frozen at 2000 via the script's allowlist).
      - name: LOC gate (file size budget)
        run: ./scripts/loc-gate.sh

  # Guards the no-ORT build (#586). The `embeddings`/`neural` features pull the
  # `ort` crate, whose `load-dynamic` dylib resolver has no fallback arm for
  # non-tier-1 targets (FreeBSD, etc.), so community ports build with those
  # features off. This job catches any code that references `ort`/embeddings
  # without a feature gate. Dead code in the reduced build is expected, so
  # warnings are not denied here (override the workflow-wide -Dwarnings).
  build-minimal:
    name: Build (no embeddings / no ORT)
    runs-on: ubuntu-latest
    env:
      RUSTFLAGS: ""
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
        with:
          workspaces: rust -> target
      - name: Check build without ORT-backed features
        working-directory: rust
        run: cargo check --no-default-features --features "tree-sitter,http-server,team-server,secure-update,jemalloc"
      # The no-tree-sitter combo is the slim-binary candidate (#663) and had
      # rotted silently because only the no-ORT combo was checked.
      - name: Check build without tree-sitter
        working-directory: rust
        run: cargo check --no-default-features --features "embeddings,http-server,team-server,secure-update,jemalloc"

  fmt:
    name: Format
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
        with:
          components: rustfmt
      - name: Check formatting
        working-directory: rust
        run: cargo fmt --check

  cookbook:
    name: Cookbook (Node)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: actions/setup-node@v4
        with:
          node-version: "20"
          cache: "npm"
          cache-dependency-path: cookbook/package-lock.json
      - name: Install
        working-directory: cookbook
        run: npm ci
      - name: Lint
        working-directory: cookbook
        run: npm run lint
      - name: Typecheck
        working-directory: cookbook
        run: npm run typecheck
      - name: Test
        working-directory: cookbook
        run: npm test
      - name: Build
        working-directory: cookbook
        run: npm run build

  pi-extension:
    name: Pi Extension (Node)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      # Fail fast if pi-lean-ctx / lean-ctx-bin drifted from the engine version,
      # so the Pi extension can never quietly fall behind (npm skips the publish
      # of a stale version). Runs on every push/PR — not just at release.
      - name: Check npm package ↔ engine version coupling
        run: python3 scripts/check-package-versions.py
      - uses: actions/setup-node@v4
        with:
          node-version: "22"
          cache: "npm"
          cache-dependency-path: packages/pi-lean-ctx/package-lock.json
      - name: Install
        working-directory: packages/pi-lean-ctx
        run: npm ci
      - name: Typecheck
        working-directory: packages/pi-lean-ctx
        run: npm run typecheck
      - name: Test
        working-directory: packages/pi-lean-ctx
        run: npm test

  rust-sdk:
    name: Rust SDK (lean-ctx-client)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
        with:
          components: clippy, rustfmt
      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
        with:
          workspaces: clients/rust/lean-ctx-client -> target
      - name: Format
        working-directory: clients/rust/lean-ctx-client
        run: cargo fmt --check
      - name: Clippy
        working-directory: clients/rust/lean-ctx-client
        run: cargo clippy --all-targets -- -D warnings
      - name: Test
        working-directory: clients/rust/lean-ctx-client
        run: cargo test
      - name: Docs
        working-directory: clients/rust/lean-ctx-client
        env:
          RUSTDOCFLAGS: -D warnings
        run: cargo doc --no-deps

  embed-sdk:
    # Track A — the in-process embedding SDK (rust/crates/lean-ctx-sdk). It is a
    # workspace member but excluded from `default-members`, so the engine's own
    # test/clippy/doc jobs never see it; this job is its dedicated gate
    # (pedantic clippy, doctests, the engine-integration tests, example build).
    name: Embed SDK (lean-ctx-sdk)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
        with:
          components: clippy, rustfmt
      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
        with:
          workspaces: rust -> target
      - name: Format
        working-directory: rust
        run: cargo fmt -p lean-ctx-sdk --check
      - name: Clippy (pedantic, 0 warnings)
        working-directory: rust
        run: cargo clippy -p lean-ctx-sdk --all-targets -- -D warnings
      - name: Test (doctests + engine integration)
        working-directory: rust
        run: cargo test -p lean-ctx-sdk
      - name: Example builds
        working-directory: rust
        run: cargo build -p lean-ctx-sdk --example embed
      - name: Docs
        working-directory: rust
        env:
          RUSTDOCFLAGS: -D warnings
        run: cargo doc -p lean-ctx-sdk --no-deps

  python-sdk:
    name: Python SDK (leanctx)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: actions/setup-python@v5 # v5
        with:
          python-version: "3.11"
      - name: Install
        working-directory: clients/python
        run: pip install -e ".[dev]"
      - name: Test
        working-directory: clients/python
        run: python -m pytest -q

  hermes-plugin:
    # The Hermes context-engine plugin (integrations/hermes-lean-ctx) replaces
    # Hermes' built-in ContextCompressor with lean-ctx. Gate: pytest (ABC
    # conformance + tool_call/tool_result invariant + daemon-down graceful) and
    # a benchmark smoke that proves the harness runs offline (local fallback).
    name: Hermes Plugin (Python)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: actions/setup-python@v5 # v5
        with:
          python-version: "3.11"
      - name: Install test deps
        # Runtime dep (leanctx SDK) is wired onto sys.path by the plugin
        # conftest from clients/python — no install needed. tiktoken makes the
        # token count match the host model exactly; without it the plugin uses
        # its char-based fallback (also tested).
        run: pip install pytest tiktoken
      - name: Run plugin tests
        working-directory: integrations/hermes-lean-ctx
        run: python -m pytest tests/ -q
      - name: Benchmark smoke (offline, local fallback)
        working-directory: integrations/hermes-lean-ctx
        # Discard port → daemon unreachable → exercises deterministic local
        # compaction end-to-end. Competitors are auto-skipped when absent.
        run: python benchmarks/run.py --turns 40 --needles 6 --context-length 2000 --base-url http://127.0.0.1:9 --no-write

  sdk-conformance:
    # GL #395: every first-party SDK must prove the full /v1 contract against
    # a real engine build. Red when an SDK misses a route, mistypes a shape,
    # or the engine drifts from the frozen surface.
    name: SDK Conformance Matrix
    runs-on: ubuntu-latest
    timeout-minutes: 45
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
        with:
          workspaces: |
            rust -> target
            clients/rust/lean-ctx-client -> target
      - uses: actions/setup-node@v4
        with:
          node-version: "20"
          cache: "npm"
          cache-dependency-path: cookbook/package-lock.json
      - uses: actions/setup-python@v5 # v5
        with:
          python-version: "3.11"
      - name: Install Python SDK
        working-directory: clients/python
        # langchain-core gives the adapter smoke a real framework round trip;
        # LlamaIndex/CrewAI skip cleanly (heavy dep trees, covered by the
        # framework-agnostic OpenAI adapter path).
        run: pip install -e ".[dev]" langchain-core
      - name: Run conformance kit (3 SDKs vs real server)
        run: ./scripts/sdk-conformance.sh
      - name: Upload conformance matrix
        if: always()
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
        with:
          name: sdk-conformance-matrix
          path: docs/reference/sdk-conformance-matrix.md
          if-no-files-found: ignore

  coverage:
    name: Coverage
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
        with:
          # tarpaulin's LLVM engine (below) needs llvm-profdata/llvm-cov from
          # the rustup component — without it the engine silently falls back.
          components: llvm-tools-preview
      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
        with:
          workspaces: rust -> target
      - name: Free disk space
        run: |
          sudo rm -rf /usr/share/dotnet /usr/local/lib/android /opt/ghc /opt/hostedtoolcache/CodeQL || true
          df -h /
      - uses: taiki-e/install-action@74e87cbfa15a59692b158178d8905a61bf6fca95 # v2
        with:
          tool: cargo-tarpaulin
      - name: Generate coverage
        working-directory: rust
        env:
          CARGO_BUILD_JOBS: "2"
        # --engine llvm uses LLVM source-based coverage (instrument-coverage +
        # llvm-profdata) instead of tarpaulin's default ptrace engine. ptrace
        # is non-deterministically fragile on hosted runners: it corrupts the
        # tracee's registers under load, surfacing as a bogus
        # "memory allocation of 1407…bytes failed" abort followed by
        # "ECHILD: No child processes" — a flake unrelated to the code (the
        # Test matrix on the same SHA stays green). The LLVM engine never
        # ptraces, so the whole class of flake disappears.
        run: |
          cargo tarpaulin --engine llvm --out xml --skip-clean --all-features --lib --timeout 180 \
            --exclude-files 'src/cli/*' --exclude-files 'src/main.rs' \
            -- --test-threads=1
          pkill -f 'target.*lean-ctx' 2>/dev/null || true
      - name: Upload to Codecov
        uses: codecov/codecov-action@b9fd7d16f6d7d1b5d2bec1a2887e65ceed900238 # v4
        with:
          fail_ci_if_error: false

  deny:
    name: cargo-deny
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: EmbarkStudios/cargo-deny-action@5bb39ff5d5a0e94dc9e2dc94eced0c6129743a57 # v2
        with:
          manifest-path: rust/Cargo.toml

  adversarial:
    name: Adversarial Safety
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
        with:
          workspaces: rust -> target
      - name: Run adversarial compression tests
        working-directory: rust
        run: cargo test --test adversarial_compression -- --nocapture

  bench:
    name: Benchmarks
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
        with:
          workspaces: rust -> target
      - name: Compile benchmarks
        working-directory: rust
        run: cargo bench --no-run
      - name: Generate reproducible scorecard
        working-directory: rust
        run: cargo run --quiet -- benchmark scorecard --json --output ../scorecard.json
      - name: Upload scorecard artifact
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
        with:
          name: scorecard
          path: scorecard.json

  quality-gate:
    name: Output-Quality Gate (eval A/B)
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
        with:
          workspaces: rust -> target
      - name: Build lean-ctx
        working-directory: rust
        run: cargo build --quiet
      # Self-footprint gate (#578/#964): the fixed per-session cost lean-ctx
      # itself injects (advertised tool schemas + MCP instructions + wakeup)
      # must stay under budget. Runs in a scratch HOME + empty cwd so only OUR
      # footprint is measured — no repo rules files, no developer state.
      # Baseline after the diet: ~2147 tok (schemas 1685, instructions 462).
      - name: Self-footprint gate (doctor overhead)
        shell: bash
        env:
          LEAN_CTX_CONTEXT_BUDGET_TOKENS: "2600"
        run: |
          set -euo pipefail
          BIN="$GITHUB_WORKSPACE/rust/target/debug/lean-ctx"
          SCRATCH=$(mktemp -d)
          mkdir -p "$SCRATCH/home" "$SCRATCH/data" "$SCRATCH/work"
          cd "$SCRATCH/work"
          HOME="$SCRATCH/home" LEAN_CTX_DATA_DIR="$SCRATCH/data" "$BIN" doctor overhead --gate
      # Deterministic with/without output-quality proof. Three modes, in priority order:
      #   1. A committed recording (rust/eval/recording.json) → byte-stable replay, no secrets,
      #      and the gate BLOCKS on a regression.
      #   2. Otherwise, if LEAN_CTX_EVAL_* secrets are set → capture from the live model + gate.
      #   3. Otherwise → skipped (the harness itself is still covered by the test job).
      # Capture a recording once with: lean-ctx eval ab --suite … --record rust/eval/recording.json
      - name: Run deterministic A/B output-quality gate
        working-directory: rust
        shell: bash
        env:
          LEAN_CTX_EVAL_MODEL_URL: ${{ secrets.LEAN_CTX_EVAL_MODEL_URL }}
          LEAN_CTX_EVAL_MODEL: ${{ secrets.LEAN_CTX_EVAL_MODEL }}
          LEAN_CTX_EVAL_MODEL_KEY: ${{ secrets.LEAN_CTX_EVAL_MODEL_KEY }}
        run: |
          set -euo pipefail
          BIN=./target/debug/lean-ctx
          REC=eval/recording.json
          "$BIN" eval init eval-suite
          if [ -f "$REC" ]; then
            echo "Replaying committed recording (deterministic, no secrets)…"
            "$BIN" eval ab --suite eval-suite/suite.ndjson --replay "$REC" --out ab-report.json --gate
          elif [ -n "${LEAN_CTX_EVAL_MODEL_URL:-}" ]; then
            echo "No committed recording; capturing from the configured live model…"
            mkdir -p eval
            "$BIN" eval ab --suite eval-suite/suite.ndjson --record "$REC" --out ab-report.json --gate
          else
            echo "::notice::Output-quality gate skipped — commit rust/eval/recording.json or set LEAN_CTX_EVAL_* secrets."
          fi
      - name: Verify artifact (signature + determinism digest)
        working-directory: rust
        shell: bash
        run: |
          if [ -f ab-report.json ]; then ./target/debug/lean-ctx eval verify ab-report.json; fi
      - name: Upload signed A/B report
        if: always()
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
        with:
          name: eval-ab-report
          path: rust/ab-report.json
          if-no-files-found: ignore
      # Off-vs-on answer-quality testbench across pinned repos (#611). The committed
      # local-fixture subset replays with a recorded model → byte-stable, no secrets,
      # and BLOCKS on any per-repo regression. Refresh with:
      #   lean-ctx eval testbench --lock eval/testbench/testbench.lock.json --record eval/testbench/recording.json
      - name: Run deterministic testbench gate (off vs on)
        working-directory: rust
        shell: bash
        run: |
          set -euo pipefail
          BIN=./target/debug/lean-ctx
          LOCK=eval/testbench/testbench.lock.json
          REC=eval/testbench/recording.json
          if [ -f "$REC" ]; then
            echo "Replaying committed testbench subset (deterministic, no secrets)…"
            "$BIN" eval testbench --lock "$LOCK" --replay "$REC" --out testbench-out --gate
          else
            echo "::notice::Testbench gate skipped — commit rust/eval/testbench/recording.json."
          fi
      - name: Upload testbench FINDINGS
        if: always()
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
        with:
          name: testbench-findings
          path: |
            rust/testbench-out/FINDINGS.md
            rust/testbench-out/regressions.json
          if-no-files-found: ignore

  doc:
    name: Documentation
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4 # v4
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
        with:
          workspaces: rust -> target
      - name: Check docs compile
        working-directory: rust
        env:
          RUSTDOCFLAGS: -D warnings
        run: cargo doc --no-deps --all-features
      - name: Check generated reference docs are current
        working-directory: rust
        run: cargo run --example gen_docs --features dev-tools -- --check
      - name: Check bundled registry snapshots are canonical
        working-directory: rust
        run: cargo run --example gen_registry --features dev-tools -- --check
      - name: Check committed testbench recording is current
        working-directory: rust
        run: cargo run --example gen_testbench_recording --features dev-tools -- --check

  # Single aggregating gate. Point branch protection at THIS one job ("CI Green")
  # instead of every matrix leg — it stays correct when jobs are added/removed and
  # cannot be bypassed by a silently-missing required check. Runs always() so it can
  # inspect results even when a dependency failed; fails only on failure/cancelled
  # (a legitimately skipped job — e.g. the optional quality-gate — does not block).
  ci-green:
    name: CI Green
    if: always()
    needs:
      - test
      - clippy
      - build-minimal
      - fmt
      - cookbook
      - pi-extension
      - rust-sdk
      - embed-sdk
      - python-sdk
      - hermes-plugin
      - sdk-conformance
      - coverage
      - deny
      - adversarial
      - bench
      - quality-gate
      - doc
    runs-on: ubuntu-latest
    steps:
      - name: Verify no required job failed
        shell: bash
        env:
          NEEDS_JSON: ${{ toJSON(needs) }}
        run: |
          echo "$NEEDS_JSON"
          python3 - <<'PY'
          import json, os, sys

          needs = json.loads(os.environ["NEEDS_JSON"])
          blocked = {k: v["result"] for k, v in needs.items()
                     if v["result"] in ("failure", "cancelled")}
          if blocked:
              print("Required CI jobs did not pass:", blocked)
              sys.exit(1)
          print("All required CI jobs passed (success or skipped).")
          PY

  # Security audit runs in security-check.yml workflow