diff --git a/docker/daytona-runner/README.md b/docker/daytona-runner/README.md
index 449c0665c76..9bb361864c6 100644
--- a/docker/daytona-runner/README.md
+++ b/docker/daytona-runner/README.md
@@ -122,17 +122,16 @@ lockfile. Resolve the complete workspace manifest graph in the build context
 before invoking Docker, matching CI when a source commit precedes the lockfile
 bot. The trusted workflow supplies this resolved lockfile as an immutable artifact.
 The complete resolved lockfile must match `PAPERCLIP_RUNNER_LOCK_SHA256` before
-package installation or lifecycle execution. Review and refresh that digest
-with source dependency changes; registry-time resolution drift fails closed.
+package installation or lifecycle execution. Compute that digest from the
+resolved build lock; registry-time resolution drift fails closed.
 The Product E2E workflow resolves one lockfile before the image build. It
 verifies the downloaded artifact, then passes that artifact's SHA-256 as the
 `PAPERCLIP_RUNNER_LOCK_SHA256` build argument. The Dockerfile checks the resolved
-lock against this value before installation. The fixed Dockerfile default is
-for standalone builds; it must not replace a campaign's verified lock digest.
-Refresh the default from the clean tracked lockfile using the exact
-`pnpm install --resolution-only --ignore-scripts --no-frozen-lockfile` command,
-and verify a second resolution preserves the digest. A lockfile left by a
-filtered or incremental install can retain stale importer patch identities.
+lock against this value before installation. Standalone builds must also pass
+the resolved lock's digest, as shown above; the Dockerfile has no default.
+Use the exact `pnpm install --resolution-only --ignore-scripts --no-frozen-lockfile`
+command. A lockfile left by a filtered or incremental install can retain stale
+importer patch identities.
 Refresh exact runtime versions and qualification digests together; do not
 download dependencies when a task starts.
 
diff --git a/tests/runner-e2e/README.md b/tests/runner-e2e/README.md
index 9a50f99b2d5..cb2e51611e8 100644
--- a/tests/runner-e2e/README.md
+++ b/tests/runner-e2e/README.md
@@ -609,6 +609,9 @@ Use the immutable digest printed by the `Publish verified Daytona image` job,
 or publish the current source locally:
 
 ```bash
+# Resolve the build lock without committing the bot-owned root lockfile.
+pnpm install --resolution-only --ignore-scripts --no-frozen-lockfile
+lock_sha="$(shasum -a 256 pnpm-lock.yaml | cut -d ' ' -f 1)"
 content_id="$(pnpm --silent test:e2e:runner:image-id)"
 source_revision="$(git rev-parse HEAD)"
 image="ghcr.io/paperclipai/paperclip-daytona-runner:e2e-content-${content_id}"
@@ -617,6 +620,7 @@ if ! docker buildx imagetools inspect "$image" >/dev/null 2>&1; then
     --platform linux/amd64 \
     --build-arg "PAPERCLIP_RUNNER_CONTENT_ID=${content_id}" \
     --build-arg "PAPERCLIP_RUNNER_SOURCE_REVISION=${source_revision}" \
+    --build-arg "PAPERCLIP_RUNNER_LOCK_SHA256=${lock_sha}" \
     --file docker/daytona-runner/Dockerfile \
     --tag "$image" \
     --push \