diff --git a/.github/workflows/autofix-versions.env b/.github/workflows/autofix-versions.env
index aada28952..220c27f2a 100644
--- a/.github/workflows/autofix-versions.env
+++ b/.github/workflows/autofix-versions.env
@@ -1,11 +1,11 @@
-# Shared formatter/type checker pins consumed by CI workflows and local scripts.
-# Update in lock-step when bumping tooling and keep values in sync with autofix images.
+# Canonical formatter/type checker pins for Workflows and Maint 52 consumer dev-tool sync.
+# Update in lock-step with pyproject.toml, requirements.lock, and template defaults.
 #
 # NOTE: Only include dev tools here (linters, formatters, test runners).
 # Runtime dependencies (PyYAML, Pydantic, Hypothesis) should be managed via Dependabot
 # in each consumer repo's pyproject.toml directly, NOT synced from this file.
 BLACK_VERSION=26.5.1
-RUFF_VERSION=0.15.18
+RUFF_VERSION=0.15.19
 ISORT_VERSION=8.0.1
 DOCFORMATTER_VERSION=1.7.8
 MYPY_VERSION=2.1.0
diff --git a/pyproject.toml b/pyproject.toml
index 23988bf41..e85502205 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,7 @@ app = []
 dev = [
     "pre-commit==4.6.0",
     "black==26.5.1",
-    "ruff==0.15.18",
+    "ruff==0.15.19",
     "isort==8.0.1",
     "docformatter==1.7.8",
     "mypy==2.1.0",
diff --git a/requirements.lock b/requirements.lock
index bee6b74ef..611f9f434 100644
--- a/requirements.lock
+++ b/requirements.lock
@@ -296,7 +296,7 @@ rpds-py==2026.5.1
     # via
     #   jsonschema
     #   referencing
-ruff==0.15.18
+ruff==0.15.19
     # via workflows (pyproject.toml)
 six==1.17.0
     # via python-dateutil
diff --git a/templates/consumer-repo/.github/workflows/autofix-versions.env b/templates/consumer-repo/.github/workflows/autofix-versions.env
index aada28952..220c27f2a 100644
--- a/templates/consumer-repo/.github/workflows/autofix-versions.env
+++ b/templates/consumer-repo/.github/workflows/autofix-versions.env
@@ -1,11 +1,11 @@
-# Shared formatter/type checker pins consumed by CI workflows and local scripts.
-# Update in lock-step when bumping tooling and keep values in sync with autofix images.
+# Canonical formatter/type checker pins for Workflows and Maint 52 consumer dev-tool sync.
+# Update in lock-step with pyproject.toml, requirements.lock, and template defaults.
 #
 # NOTE: Only include dev tools here (linters, formatters, test runners).
 # Runtime dependencies (PyYAML, Pydantic, Hypothesis) should be managed via Dependabot
 # in each consumer repo's pyproject.toml directly, NOT synced from this file.
 BLACK_VERSION=26.5.1
-RUFF_VERSION=0.15.18
+RUFF_VERSION=0.15.19
 ISORT_VERSION=8.0.1
 DOCFORMATTER_VERSION=1.7.8
 MYPY_VERSION=2.1.0
diff --git a/templates/integration-repo/.github/workflows/autofix-versions.env b/templates/integration-repo/.github/workflows/autofix-versions.env
index aada28952..220c27f2a 100644
--- a/templates/integration-repo/.github/workflows/autofix-versions.env
+++ b/templates/integration-repo/.github/workflows/autofix-versions.env
@@ -1,11 +1,11 @@
-# Shared formatter/type checker pins consumed by CI workflows and local scripts.
-# Update in lock-step when bumping tooling and keep values in sync with autofix images.
+# Canonical formatter/type checker pins for Workflows and Maint 52 consumer dev-tool sync.
+# Update in lock-step with pyproject.toml, requirements.lock, and template defaults.
 #
 # NOTE: Only include dev tools here (linters, formatters, test runners).
 # Runtime dependencies (PyYAML, Pydantic, Hypothesis) should be managed via Dependabot
 # in each consumer repo's pyproject.toml directly, NOT synced from this file.
 BLACK_VERSION=26.5.1
-RUFF_VERSION=0.15.18
+RUFF_VERSION=0.15.19
 ISORT_VERSION=8.0.1
 DOCFORMATTER_VERSION=1.7.8
 MYPY_VERSION=2.1.0