diff --git a/.github/actionlint.yaml b/.github/actionlint.yaml
new file mode 100644
index 00000000..2c0bbea1
--- /dev/null
+++ b/.github/actionlint.yaml
@@ -0,0 +1,3 @@
+self-hosted-runner:
+  labels:
+    - ci1-integration
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
deleted file mode 100644
index 2bb485e0..00000000
--- a/.github/workflows/ci.yml
+++ /dev/null
@@ -1,31 +0,0 @@
-name: CI
-
-on:
-  pull_request:
-  push:
-    branches:
-      - main
-
-permissions:
-  contents: read
-
-jobs:
-  verify:
-    name: Verify Node ${{ matrix.node-version }}
-    runs-on: blacksmith-2vcpu-ubuntu-2404
-    strategy:
-      fail-fast: false
-      matrix:
-        node-version:
-          - 22
-    steps:
-      - uses: actions/checkout@v6
-        with:
-          persist-credentials: false
-      - uses: actions/setup-node@v6
-        with:
-          node-version: ${{ matrix.node-version }}
-          cache: npm
-      - run: npm ci
-      - run: npm run verify
-      - run: node --test scripts/release-evidence.test.mjs
diff --git a/.github/workflows/ci1.yml b/.github/workflows/ci1.yml
new file mode 100644
index 00000000..c36e6c68
--- /dev/null
+++ b/.github/workflows/ci1.yml
@@ -0,0 +1,49 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  verify:
+    name: Verify Node ${{ matrix.node-version }}
+    runs-on: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name != github.repository && 'ubuntu-latest' || 'ci1-integration' }}
+    timeout-minutes: 20
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version:
+          - 22
+    steps:
+      - name: Require trusted source
+        env:
+          EVENT_NAME: ${{ github.event_name }}
+          HEAD_REPOSITORY: ${{ github.event.pull_request.head.repo.full_name }}
+          REPOSITORY: ${{ github.repository }}
+        run: |
+          set -euo pipefail
+          if [[ "$EVENT_NAME" == pull_request && "$HEAD_REPOSITORY" != "$REPOSITORY" ]]; then
+            echo 'Fork PRs require a separately qualified runner policy' >&2
+            exit 1
+          fi
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - name: Require qualified ci-1 image
+        run: |
+          python3 scripts/verify-ci1-image.py
+          sha256sum --check --strict /etc/ci1-image/manifests.sha256
+      - name: Test image admission refusals
+        run: python3 -m unittest discover -s scripts -p ci1_image_test.py -v
+      - uses: actions/setup-node@949feb2413d6458794dcd2491c4babbbce0c15c1 # v7.1.0
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: npm
+      - run: npm ci
+      - run: npm run verify
+      - run: node --test scripts/release-evidence.test.mjs
diff --git a/internal/agent-sessions/ci1-cli-20261019.md b/internal/agent-sessions/ci1-cli-20261019.md
new file mode 100644
index 00000000..7416451d
--- /dev/null
+++ b/internal/agent-sessions/ci1-cli-20261019.md
@@ -0,0 +1,51 @@
+# CI migration checkpoint
+
+Collaborator: purpshell. Agent/model: Codex/gpt-6.1-sol. Host: T3 Code.
+Thread: `8ad9e447-6fd5-4fc5-8e96-189326af2c28`.
+Source dependency: CLI main `c21af71f13e68230769d1a2ca17985d143bf6c6e`.
+Registration: https://github.com/polymorfa/polymorfa/pull/511.
+
+Coverage: manually summarized visible messages and selected tool outcomes.
+This is not automatic T3 capture. Excludes raw logs, private credential paths or
+values, attachments, authentication screens, unrelated history and hidden model
+reasoning. Checkpoint date is 2026-10-19; original message arrival times are not
+reconstructed. Attribution and review are self-reported.
+
+## Visible instructions and outcomes
+
+- User approved GARM + Incus and versioned Ubuntu images under the coordinated
+  monorepo plan, and chose to pause new paid CI while required checks wait.
+- User then asked to get the cutover going and get it out as soon as possible.
+- GitHub confirms this repository is private and old CI workflow 338004193 is
+  disabled. Its existing source uses Blacksmith with Node 22 and three commands.
+- Agent created an isolated CLI worktree from the fetched main SHA above.
+  No AGENTS.md or CLAUDE.md exists in that source; README and both workflows
+  were inspected. The old checkout remains on its original branch.
+- The prepared workflow uses ci1-integration and retains Node 22 and the three
+  existing source commands. New image admission rejects stale or mismatched
+  definitions and verifies the worker shape. Five local boundary tests pass;
+  actionlint and zizmor pass after declaring the actual custom runner label.
+- The new workflow has read-only permissions, pinned checkout/Node actions,
+  refuses fork PRs and uses a 20-minute bound. There is no paid fallback.
+- Runtime code, public contracts, package publication and deployment are
+  unchanged. Actual GitHub CI acceptance remains pending at this checkpoint.
+
+- Full local verification passed 110 test files and 1,051 tests, plus types, lint,
+  formatting, build, package dry-run and a clean production audit. The three
+  release-evidence tests also passed. No package or lockfile changed.
+
+## Review follow-up
+
+The user asked to handle the three findings and merge urgently. Two findings
+reproduced: a skipped fork job can satisfy the required check, and default GNU
+checksum parsing accepts a malformed row beside a valid row. The fix fails the
+same named check before checkout on a GitHub-hosted fork rejection worker and
+uses strict checksum parsing. All trusted source work remains on ci-1. Seven
+boundary tests pass after reproducing both failures.
+
+The final-image identity is already bound at the controller: live readback
+confirmed scale sets 1 and 2 pinned to the qualified fingerprint, with its
+fingerprint-named Incus alias pointing to itself. The provider rejects remote
+names and retargeted aliases. The new operator receipt documents that authority;
+the guest's manifest is a content/age check rather than image attestation.
+No pool, image, host limit, product secret, deployment or runtime changed.
diff --git a/internal/docs/ci1-qualified-pool.json b/internal/docs/ci1-qualified-pool.json
new file mode 100644
index 00000000..6fe9bcf8
--- /dev/null
+++ b/internal/docs/ci1-qualified-pool.json
@@ -0,0 +1,37 @@
+{
+  "schema": 1,
+  "observed_at": "2026-10-19T19:00:23.666736+00:00",
+  "controller": "ci-1",
+  "scalesets": [
+    {
+      "id": 1,
+      "name": "ci1-general",
+      "image": "505d3336ea46318175907ac2192df5002406731bd2990a344ba2ee98c1c89ab0",
+      "enabled": true
+    },
+    {
+      "id": 2,
+      "name": "ci1-integration",
+      "image": "505d3336ea46318175907ac2192df5002406731bd2990a344ba2ee98c1c89ab0",
+      "enabled": true
+    }
+  ],
+  "incus_project": "ci1",
+  "alias": {
+    "name": "505d3336ea46318175907ac2192df5002406731bd2990a344ba2ee98c1c89ab0",
+    "target": "505d3336ea46318175907ac2192df5002406731bd2990a344ba2ee98c1c89ab0"
+  },
+  "authority": "GARM controller scale-set image pin and provider fingerprint-alias enforcement; guest manifest is a separate content and age check",
+  "mutation": "none; read-only verification",
+  "requalification": "Any new fingerprint needs explicit pool changes and the coordinated image/lifecycle qualification",
+  "provider_wrapper": {
+    "path": "/opt/garm/providers.d/ci1-incus",
+    "sha256": "a091d8c0f8a08be521d754d046622b6fcc66f127c9bea52d60082f2a3d424813",
+    "matches_source": "https://github.com/polymorfa/polymorfa/blob/d35de858d73fe9c6d9e6110637a18a3dfe57fb56/infra/ci1/provider-admission.sh",
+    "checks": [
+      "local immutable fingerprint required",
+      "fingerprint-named alias must target that exact fingerprint",
+      "remote names rejected"
+    ]
+  }
+}
diff --git a/internal/docs/ci1-runners.md b/internal/docs/ci1-runners.md
new file mode 100644
index 00000000..c82f7b28
--- /dev/null
+++ b/internal/docs/ci1-runners.md
@@ -0,0 +1,86 @@
+# CLI checks on ci-1
+
+The owner approved the GARM + Incus cutover and paused new paid CI runs. This
+change qualifies the private CLI repository on disposable Linux workers. The
+[coordinated plan](https://github.com/polymorfa/polymorfa/blob/d35de858d73fe9c6d9e6110637a18a3dfe57fb56/internal/docs/superpowers/plans/2026-10-19-ci1-runner-images-and-cutover.md)
+owns the host, image, lifecycle proof and environment holds.
+
+## Workflow and image contract
+
+`ci1.yml` keeps the CI display name, Verify Node 22 check and all three existing
+commands: `npm ci`, `npm run verify` and the release-evidence tests. It uses
+`ci1-integration` with eight CPUs and 32 GiB RAM, a 20-minute job deadline, read-only
+repository permission and no checkout credential persistence. The already qualified integration pool lets this CLI check run alongside the
+monorepo general queue, within the unchanged host budget. Fork PRs run only a
+failing guard on a GitHub-hosted runner, before checkout; the preserved Verify
+Node 22 check fails instead of reporting a successful skip. Trusted source work
+always uses ci-1. No source-test fallback exists.
+
+The new file identity lets this PR qualify while old paid workflow 338004193
+stays disabled. Do not enable the old identity before inspecting its source;
+the default branch still selects Blacksmith until the cutover merges.
+
+Before installation, the job validates the shared image's base fingerprint,
+machine/tool input hashes, age of at most seven days, architecture and CPU shape.
+It then verifies the image's checksum manifest with strict parsing; any malformed
+line fails admission. Node setup selects cached Node 22. Existing npm cache behavior and the lockfile-based installation remain.
+The image's pnpm cache belongs to the monorepo; no CLI npm-cache hit is inferred.
+A changed image definition requires new qualification and explicit pin updates.
+
+The qualified image fingerprint is
+`505d3336ea46318175907ac2192df5002406731bd2990a344ba2ee98c1c89ab0`.
+The controller's scale set 2 (`ci1-integration`) pins this exact final fingerprint;
+scale set 1 does too. A live readback on 2026-10-19 confirmed both pins and the
+fingerprint-named local Incus alias targeting that same fingerprint. The installed
+provider wrapper SHA-256 also matches its committed source. The
+[readback receipt](ci1-qualified-pool.json) records the binding. The controller
+provider refuses remote or non-fingerprint image names and rejects retargeted
+aliases. Image identity is bound by this controller configuration; the guest
+manifest checks content and age. A new image needs explicit operator pool
+changes and full qualification under the coordinated plan.
+
+Its definition source is `6481b9e199d96fb3488f34d6335ac41169f4fb5d` in the monorepo.
+The underlying Ubuntu base is
+`2139edd9da4026da8a66c0557af7eee4789101104eb27860bacd57086219cebb`.
+Public source dependencies only are installed; no customer credential, release
+signing key or production secret is added to CI or the image.
+
+## Qualification and rollout
+
+Source dependency: CLI main `c21af71f13e68230769d1a2ca17985d143bf6c6e`.
+Seven local admission tests cover the accepted image, wrong architecture/shape,
+expiry/future clock, wrong base, changed/missing definition or tool hashes,
+fork guard outcomes before checkout and malformed checksum rows. The two new
+regressions failed before the fix and pass afterward; all source test commands
+remain unchanged.
+The unchanged local `npm run verify` passed all 110 test files and 1,051 tests,
+types, lint, formatting, build, package dry-run and production audit (zero
+production vulnerabilities). Three release-evidence tests also passed.
+Local workflow lint and diff checks pass. GitHub source qualification and the
+first main-branch run remain required. Host lifecycle proof is separate from CLI
+source acceptance.
+
+The publication workflow is unchanged. It runs on its schedule or manual
+invocation, requires matching SDK/API acceptance and never runs merely because
+this CI PR merges. This change does not authorize a package publication or
+staging deployment. Staging and regional rename holds remain in force.
+
+On a bad image, drain/rebuild the worker pool under the monorepo runbook and
+qualify it again. Do not silently re-enable paid CI. Reverting the source change
+does not re-enable workflow 338004193; paid resumption needs an owner cost decision.
+
+## Impact and session provenance
+
+CI and operator documentation are updated. CLI commands, credential handling,
+SDK dependency, API contracts, public docs/changelog, product release flags,
+Admin controls, billing, Usage, logs, analytics and customer interfaces are
+unaffected because no runtime, dependency or product configuration changes.
+No customer feature or release flag is introduced. Linear is unavailable in this
+session; no tracker synchronization is claimed.
+
+Collaborator purpshell; Codex/gpt-6.1-sol; T3 thread
+`8ad9e447-6fd5-4fc5-8e96-189326af2c28`. The existing registration is
+[monorepo PR 511](https://github.com/polymorfa/polymorfa/pull/511).
+The [sanitized manual checkpoint](../agent-sessions/ci1-cli-20261019.md) records
+visible instructions and tool outcomes, with capture gaps. It provides
+provenance, not GitHub acceptance or release authority.
diff --git a/scripts/ci1_image_test.py b/scripts/ci1_image_test.py
new file mode 100644
index 00000000..8204c794
--- /dev/null
+++ b/scripts/ci1_image_test.py
@@ -0,0 +1,89 @@
+"""Fail-closed admission for the shared, pinned ci-1 image."""
+import copy
+import datetime
+import importlib.util
+import pathlib
+import hashlib
+import os
+import subprocess
+import tempfile
+import textwrap
+import unittest
+
+spec = importlib.util.spec_from_file_location("ci1_image", pathlib.Path(__file__).with_name("verify-ci1-image.py"))
+image = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(image)
+
+
+class AdmissionTest(unittest.TestCase):
+    def setUp(self):
+        self.now = datetime.datetime(2026, 10, 19, 18, 0, tzinfo=datetime.timezone.utc)
+        self.manifest = {
+            "built_at": "2026-10-19T14:41:57+00:00",
+            "base_fingerprint": "2139edd9da4026da8a66c0557af7eee4789101104eb27860bacd57086219cebb",
+            "inputs": {
+                "infra/ci1/machine.json": "0900619bac06c6a81f5d7535107985bf8d9cf11c6dd2079273d8ab81d9ebac3a",
+                "infra/ci1/tools.lock.json": "4c2a7cac77ebd8221054b2e78dfdd81e15327fb92d3e80d8986a73fb5e326d15",
+            },
+        }
+
+    def test_qualified_image(self):
+        image.validate_image(self.manifest, self.now, "x86_64", 8)
+
+    def test_wrong_shape_or_architecture(self):
+        for arch, cpus in [("aarch64", 8), ("x86_64", 4)]:
+            with self.subTest(arch=arch, cpus=cpus), self.assertRaises(ValueError):
+                image.validate_image(self.manifest, self.now, arch, cpus)
+
+    def test_expired_image_or_future_clock(self):
+        for built in ["2026-10-11T18:00:00+00:00", "2026-10-19T18:02:00+00:00", "2026-10-19T14:41:57"]:
+            with self.subTest(built=built), self.assertRaises(ValueError):
+                image.validate_image({**self.manifest, "built_at": built}, self.now, "x86_64", 8)
+
+    def test_wrong_base(self):
+        with self.assertRaises(ValueError):
+            image.validate_image({**self.manifest, "base_fingerprint": "0" * 64}, self.now, "x86_64", 8)
+
+    def test_changed_or_missing_definition_and_tools(self):
+        for name in self.manifest["inputs"]:
+            for value in [None, "0" * 64]:
+                bad = copy.deepcopy(self.manifest)
+                if value is None:
+                    del bad["inputs"][name]
+                else:
+                    bad["inputs"][name] = value
+                with self.subTest(name=name, value=value), self.assertRaises(ValueError):
+                    image.validate_image(bad, self.now, "x86_64", 8)
+
+
+class WorkflowAdmissionTest(unittest.TestCase):
+    def setUp(self):
+        self.workflow = pathlib.Path(__file__).parents[1].joinpath(".github/workflows/ci1.yml").read_text()
+        self.scratch = pathlib.Path.home() / ".polymorfa-agent-work" / "cli-ci1-admission-tests"
+        self.scratch.mkdir(parents=True, exist_ok=True)
+
+    def test_malformed_checksum_row_fails(self):
+        with tempfile.TemporaryDirectory(dir=self.scratch) as directory:
+            root = pathlib.Path(directory)
+            data = root / "protected-file"
+            data.write_bytes(b"qualified bytes")
+            record = root / "manifest.sha256"
+            record.write_text(hashlib.sha256(data.read_bytes()).hexdigest() + "  " + str(data) + "\n")
+            command = next(line.strip().split() for line in self.workflow.splitlines() if line.strip().startswith("sha256sum --check"))
+            command[-1] = str(record)
+            result = subprocess.run(command, capture_output=True)
+            self.assertEqual(result.returncode, 0, result.stderr.decode())
+            record.write_text(record.read_text() + "malformed entry\n")
+            result = subprocess.run(command, capture_output=True)
+            self.assertNotEqual(result.returncode, 0, result.stdout.decode())
+
+    def test_fork_guard_fails_before_checkout(self):
+        marker = "      - name: Require trusted source\n"
+        self.assertIn(marker, self.workflow)
+        script = self.workflow.split(marker, 1)[1].split("        run: |\n", 1)[1].split("\n      - ", 1)[0]
+        script = textwrap.dedent(script)
+        for event, head, expected in [("pull_request", "polymorfa/cli", 0), ("push", "", 0), ("pull_request", "external/cli", 1), ("pull_request", "", 1)]:
+            with self.subTest(event=event, head=head):
+                result = subprocess.run(["bash", "-c", script], env={**os.environ, "EVENT_NAME": event, "HEAD_REPOSITORY": head, "REPOSITORY": "polymorfa/cli"}, capture_output=True)
+                self.assertEqual(result.returncode, expected)
+        self.assertLess(self.workflow.index(marker), self.workflow.index("      - uses: actions/checkout@"))
diff --git a/scripts/verify-ci1-image.py b/scripts/verify-ci1-image.py
new file mode 100644
index 00000000..6891d8f9
--- /dev/null
+++ b/scripts/verify-ci1-image.py
@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+"""Validate the shared ci-1 image before installing CLI dependencies."""
+import datetime
+import json
+import os
+import pathlib
+import platform
+
+BASE = "2139edd9da4026da8a66c0557af7eee4789101104eb27860bacd57086219cebb"
+INPUTS = {
+    "infra/ci1/machine.json": "0900619bac06c6a81f5d7535107985bf8d9cf11c6dd2079273d8ab81d9ebac3a",
+    "infra/ci1/tools.lock.json": "4c2a7cac77ebd8221054b2e78dfdd81e15327fb92d3e80d8986a73fb5e326d15",
+}
+
+
+def validate_image(data, now, architecture, cpus):
+    if architecture != "x86_64" or cpus != 8:
+        raise ValueError("ci-1 requires the qualified 8-CPU x86_64 integration VM")
+    built = datetime.datetime.fromisoformat(data["built_at"])
+    if built.tzinfo is None:
+        raise ValueError("ci-1 image timestamp requires a timezone")
+    age = now - built
+    if age.total_seconds() < -60 or age > datetime.timedelta(days=7):
+        raise ValueError("ci-1 image age or clock is invalid; rebuild before running CI")
+    if data["base_fingerprint"] != BASE:
+        raise ValueError("ci-1 base image does not match the qualified definition")
+    for name, expected in INPUTS.items():
+        if data["inputs"].get(name) != expected:
+            raise ValueError("ci-1 image definition or tools changed; qualify before running CI")
+
+
+if __name__ == "__main__":
+    manifest = pathlib.Path("/etc/ci1-image/input-manifest.json")
+    data = json.loads(manifest.read_text())
+    validate_image(data, datetime.datetime.now(datetime.timezone.utc), platform.machine(), len(os.sched_getaffinity(0)))
+    print("ci-1 image age, base, tool definition and integration VM shape qualified")