DEVX-136: feat: add fix_pr_title module and update_pr API method

src/devx/api_clients.py

@@ -224,6 +224,16 @@ class GiteaClient:
         r = self._request("GET", f"/pulls/{pr_number}")
         return r.json()
 
+    def update_pr(self, pr_number: str | int, fields: dict[str, Any]) -> dict[str, Any]:
+        """Update a pull request (e.g. title, body, state).
+
+        Args:
+            pr_number: PR number.
+            fields: Dict of fields to update (e.g. {"title": "new title"}).
+        """
+        r = self._request("PATCH", f"/pulls/{pr_number}", json=fields)
+        return r.json()
+
     def create_pr(self, title: str, head: str, base: str = "master", body: str = "") -> dict[str, Any]:
         """Create a pull request and return the PR dict.
 

src/devx/ci/check_auto_merge_ready.py

@@ -285,6 +285,26 @@ def cli(
         click.echo("=" * 60, err=True)
         for e in errors:
             click.echo(f"  - {e}", err=True)
+
+        # Remediation hints for the most common failure: PR title format
+        title_errors = [
+            e for e in errors if "PR title must follow format" in str(e) or "PR title task ID mismatch" in str(e)
+        ]
+        if title_errors and pr_number is not None and repo is not None:
+            click.echo("", err=True)
+            click.echo("REMEDIATION:", err=True)
+            click.echo(
+                _(
+                    "  Fix the PR title with:\n"
+                    "    python3 -m devx.ci.fix_pr_title --repo {repo} --pr-number {pr}\n"
+                    "  Or manually set the PR title to: '{expected}'",
+                    repo=repo,
+                    pr=pr_number,
+                    expected=f"{task_id}: <Vikunja task title>",
+                ),
+                err=True,
+            )
+
         raise click.ClickException(_("Pre-merge validation failed."))
 
     click.echo("[pre-merge-check] All auto-merge preconditions satisfied.")

src/devx/ci/fix_pr_title.py

@@ -0,0 +1,127 @@
+#!/usr/bin/env python3
+"""Auto-fix PR title to follow the ``{PREFIX}-N: <title>`` convention.
+
+Reads the task ID from the branch name, fetches the Vikunja task title,
+and updates the PR title via the Gitea API.
+
+Exit codes:
+  0 = PR title updated (or already correct)
+  1 = Error (missing token, PR not found, etc.)
+
+Usage::
+
+    python3 -m devx.ci.fix_pr_title --repo owner/repo --pr-number 123
+    python3 -m devx.ci.fix_pr_title --repo owner/repo --branch DEVX-256-fix-foo --pr-number 123
+"""
+
+from __future__ import annotations
+
+import click
+from dotenv import load_dotenv  # pyright: ignore[reportMissingImports,reportUnknownVariableType]
+
+from devx.api_clients import GiteaClient
+from devx.ci.auto_merge import extract_task_id
+from devx.ci.check_auto_merge_ready import get_vikunja_title_optional
+from devx.config import (
+    GITEA_API_URL,
+    TASK_PREFIX,
+)
+from devx.exceptions import APIError
+from devx.i18n import _
+from devx.tokens import get_ci_token
+
+load_dotenv()
+
+
+@click.command()
+@click.option("--repo", required=True, help=_("Repository in owner/name format"))
+@click.option("--pr-number", type=int, required=True, help=_("PR number to fix"))
+@click.option("--branch", default=None, help=_("Branch name (auto-fetched from PR if not given)"))
+@click.option("--dry-run", is_flag=True, help=_("Show what would change without updating"))
+def cli(repo: str, pr_number: int, branch: str | None, dry_run: bool) -> None:
+    """Fix PR title to follow the ``{PREFIX}-N: <title>`` convention."""
+    if "/" not in repo:
+        raise click.ClickException(_("Repo must be in 'owner/name' format, got: {repo}", repo=repo))
+    owner, repo_name = repo.split("/", 1)
+
+    # 1. Get CI token
+    try:
+        token = get_ci_token()
+    except click.ClickException as exc:
+        raise click.ClickException(_("CI_GITEA_API_TOKEN not set: {error}", error=str(exc))) from exc
+
+    client = GiteaClient(GITEA_API_URL, token, owner, repo_name)
+
+    # 2. Fetch PR
+    try:
+        pr = client.get_pr(pr_number)
+    except APIError as exc:
+        raise click.ClickException(_("Failed to fetch PR #{pr}: {error}", pr=pr_number, error=str(exc))) from exc
+
+    current_title = str(pr.get("title", ""))
+    if not branch:
+        branch = str(pr.get("head", {}).get("ref", ""))
+        if not branch:
+            raise click.ClickException(_("Could not determine branch name from PR #{pr}", pr=pr_number))
+
+    click.echo(f"[fix-pr-title] Branch: {branch}")
+    click.echo(f"[fix-pr-title] Current PR title: {current_title}")
+
+    # 3. Extract task ID from branch
+    task_id = extract_task_id(branch)
+    if not task_id:
+        raise click.ClickException(
+            _(
+                "No task ID found in branch '{branch}'. Expected format: {prefix}-N-description.",
+                branch=branch,
+                prefix=TASK_PREFIX,
+            )
+        )
+
+    click.echo(f"[fix-pr-title] Task ID: {task_id}")
+
+    # 4. Get Vikunja task title
+    vikunja_title = get_vikunja_title_optional(task_id)
+    if vikunja_title is None:
+        # Fallback: strip common prefixes from current title
+        # (e.g. "fix: ...", "feat: ...", "refactor: ...")
+        import re
+
+        stripped = re.sub(
+            r"^(fix|feat|refactor|chore|docs|test|ci|build|perf|style|revert)(\(.+?\))?!?:\s*", "", current_title
+        )
+        # Also strip any leading task ID prefix
+        stripped = re.sub(rf"^{TASK_PREFIX}-\d+:\s*", "", stripped)
+        vikunja_title = stripped if stripped else current_title
+        click.echo(f"[fix-pr-title] WARNING: Vikunja task not found — using stripped title: {vikunja_title}")
+    else:
+        click.echo(f"[fix-pr-title] Vikunja title: {vikunja_title}")
+
+    # 5. Build new title
+    # Defensive: strip task ID prefix from Vikunja title if present
+    if vikunja_title.startswith(f"{task_id}:"):
+        vikunja_title = vikunja_title[len(f"{task_id}:") :].strip()
+
+    new_title = f"{task_id}: {vikunja_title}"
+
+    if current_title == new_title:
+        click.echo(f"[fix-pr-title] PR title already correct: {new_title}")
+        return
+
+    click.echo(f"[fix-pr-title] New PR title: {new_title}")
+
+    if dry_run:
+        click.echo("[fix-pr-title] Dry run — not updating PR.")
+        return
+
+    # 6. Update PR title
+    try:
+        client.update_pr(pr_number, {"title": new_title})
+    except APIError as exc:
+        raise click.ClickException(_("Failed to update PR #{pr}: {error}", pr=pr_number, error=str(exc))) from exc
+
+    click.echo(f"[fix-pr-title] PR #{pr_number} title updated to: {new_title}")
+
+
+if __name__ == "__main__":  # pragma: no cover
+    cli()  # pragma: no cover

src/devx/tools/check_test_isolation.py

@@ -7,25 +7,29 @@ This module is used in two ways:
    When devx is installed, pytest auto-discovers this plugin via the
    ``pytest11`` entry point.  Every ``pytest`` run statically analyzes
    test files for patterns that cause slow, non-deterministic, or
-   non-hermetic tests and reports violations as warnings.
+   non-hermetic tests and **fails the test run** if any violations are found.
 
-   To promote warnings to errors (fail the test run), add to pyproject.toml::
+   The plugin also wraps ``subprocess.run`` at runtime to catch real
+   subprocess calls that leak through transitive call paths (e.g.
+   ``CliRunner.invoke(main)`` → ``main()`` → ``update_doc_versions()``
+   → ``subprocess.run()``).  If a test spawns a real subprocess without
+   ``@patch``, the test fails.
 
-       [tool.pytest.ini_options]
-       filterwarnings = ["error:Test isolation:UserWarning"]
-
-   Or use the ``--strict-test-isolation`` flag on the command line.
+   To disable for a specific run: ``--no-test-isolation``.
 
 2. **As a standalone CLI** (for CI gates)::
 
        python3 -m devx.tools.check_test_isolation [--test-path tests/]
-       python3 -m devx.tools.check_test_isolation --strict
+
+   Always exits non-zero on any hard violation. Transitive-subprocess
+   findings are reported as advisories (exit 0) since static analysis
+   can't predict early exits — the runtime audit is authoritative.
 
 Patterns detected:
 
 1. **Unpatched subprocess calls** — test functions that call
    ``subprocess.run/call/Popen/check_call/check_output`` without a
-   corresponding ``@patch`` decorator.
+   corresponding ``@patch`` decorator or ``with patch(...)`` context manager.
 2. **Unpatched ``time.sleep``** — test functions that call ``time.sleep``
    without patching it.
 3. **Unpatched known-subprocess-helpers** — functions known to spawn
@@ -34,12 +38,23 @@ Patterns detected:
    network I/O (e.g. ``get_pat``, ``load_secrets``, ``requests.get``)
    called without patching.
 5. **Excessive iteration loops** — ``for _ in range(N)`` where N > 100.
+6. **Module-level heavy imports** — importing ``httpx``, ``ansible``,
+   etc. at module level in test files slows collection for all tests.
+7. **``importlib.reload`` without cleanup** — reloading a module in a
+   test mutates global state.  Each reload must be paired with a
+   cleanup reload (or wrapped in try/finally) to restore defaults.
+8. **Transitive subprocess leaks** — ``CliRunner.invoke(target)`` where
+   ``target`` transitively calls ``subprocess.run`` without being patched.
+   Detected via static call-graph analysis (warning) AND runtime audit
+   (authoritative — fails the test if a real subprocess runs).
 """
 
 from __future__ import annotations
 
 import ast
+import subprocess  # nosec B404
 import sys
+import threading
 from dataclasses import dataclass, field
 from pathlib import Path
 
@@ -51,6 +66,33 @@ from devx.i18n import _
 
 DEFAULT_MAX_LOOP_ITERATIONS = 100
 
+# Heavy modules that are slow to import (>50ms).  When imported at module
+# level in a test file, they slow down test collection for ALL tests.
+# Maps module name → approximate import time in milliseconds.
+# NOTE: ``requests`` is excluded because it's a core devx dependency —
+# it's loaded during collection regardless of whether test files import it.
+HEAVY_MODULE_IMPORTS: dict[str, float] = {
+    "httpx": 80.0,
+    "aiohttp": 120.0,
+    "docker": 90.0,
+    "kubernetes": 200.0,
+    "boto3": 250.0,
+    "botocore": 200.0,
+    "ansible": 300.0,
+    "molecule": 150.0,
+    "cv2": 400.0,
+    "numpy": 100.0,
+    "pandas": 200.0,
+    "matplotlib": 300.0,
+    "PIL": 80.0,
+    "Pillow": 80.0,
+    "sqlalchemy": 150.0,
+    "django": 200.0,
+    "flask": 80.0,
+    "fastapi": 100.0,
+    "pydantic": 60.0,
+}
+
 # Functions known to spawn subprocesses.  When a test calls any of these
 # without patching them, the real subprocess runs.
 # Maps function name → human-readable description.
@@ -88,6 +130,76 @@ HELPER_INTERNAL_CALLS: dict[str, set[str]] = {
     "run_cmd": {"subprocess"},
 }
 
+# subprocess functions that the runtime audit wraps.
+_SUBPROCESS_FUNCS = ("run", "call", "check_call", "check_output", "Popen")
+
+
+# ── Runtime subprocess audit ──────────────────────────────────────────────────
+#
+# The static AST analyzer can only see direct calls in test functions.
+# It cannot trace transitive calls through CliRunner.invoke(main, ...)
+# → main() → update_doc_versions() → subprocess.run().
+#
+# The runtime audit wraps subprocess functions during test execution.
+# If a test does NOT @patch subprocess, the wrapper catches real calls.
+# If a test DOES @patch subprocess, the patch overrides our wrapper
+# (correct — the test is mocking it).
+
+
+class _SubprocessAudit:
+    """Thread-local audit tracker for real subprocess calls during tests."""
+
+    def __init__(self) -> None:
+        self._local = threading.local()
+        self._installed = False
+        self._originals: dict[str, object] = {}
+
+    def _ensure_installed(self) -> None:
+        """Install wrappers on subprocess module (once)."""
+        if self._installed:
+            return
+        for name in _SUBPROCESS_FUNCS:
+            original = getattr(subprocess, name, None)
+            if original is None:
+                continue
+            self._originals[name] = original
+            setattr(subprocess, name, self._make_wrapper(name, original))
+        self._installed = True
+
+    def _make_wrapper(self, name: str, original: object) -> object:
+        """Create a wrapper that records calls when auditing is active."""
+
+        def wrapper(*args: object, **kwargs: object) -> object:
+            calls = getattr(self._local, "calls", None)
+            if calls is not None:
+                # Extract command for diagnostics
+                cmd = args[0] if args else kwargs.get("args", "?")
+                if isinstance(cmd, (list, tuple)) and cmd:
+                    cmd_str = " ".join(str(c) for c in cmd[:4])
+                    if len(cmd) > 4:
+                        cmd_str += " ..."
+                else:
+                    cmd_str = str(cmd)
+                calls.append((name, cmd_str))
+            return original(*args, **kwargs)  # type: ignore[misc]
+
+        return wrapper
+
+    def start_test(self) -> None:
+        """Begin auditing subprocess calls for the current test."""
+        self._ensure_installed()
+        self._local.calls = []
+
+    def stop_test(self) -> list[tuple[str, str]]:
+        """Stop auditing and return recorded calls."""
+        calls = getattr(self._local, "calls", [])
+        self._local.calls = None
+        return calls
+
+
+# Singleton instance used by the pytest plugin
+_audit = _SubprocessAudit()
+
 
 # ── Data structures ───────────────────────────────────────────────────────────
 
@@ -125,22 +237,58 @@ class TestFunctionInfo:
 
 
 def _extract_patch_targets(node: ast.FunctionDef | ast.AsyncFunctionDef | ast.ClassDef) -> set[str]:
-    """Extract @patch targets from decorators on a function or class."""
+    """Extract @patch targets from decorators AND ``with patch(...)`` statements.
+
+    Detects:
+    - ``@patch("module.func")`` decorators
+    - ``with patch("module.func")`` context managers
+    - ``with patch.object(module, "func")`` context managers
+    - ``with patch("a"), patch("b")`` multiple patches
+    """
     targets: set[str] = set()
+
+    def _process_patch_call(call: ast.Call) -> None:
+        """Extract target from a patch() or patch.object() call."""
+        func = call.func
+        # patch("module.func") — either bare `patch(...)` or `mock.patch(...)`
+        if (isinstance(func, ast.Name) and func.id == "patch") or (
+            isinstance(func, ast.Attribute) and func.attr == "patch"
+        ):
+            if call.args and isinstance(call.args[0], ast.Constant) and isinstance(call.args[0].value, str):
+                target = call.args[0].value
+                targets.add(target)
+                targets.add(target.rsplit(".", 1)[-1])
+        # patch.object(module, "func") — extract short name from 2nd arg
+        elif (
+            isinstance(func, ast.Attribute)
+            and func.attr == "object"
+            and isinstance(func.value, ast.Name)
+            and func.value.id == "patch"
+            and len(call.args) >= 2
+            and isinstance(call.args[1], ast.Constant)
+            and isinstance(call.args[1].value, str)
+            and call.args[0]
+            and isinstance(call.args[0], ast.Name)
+        ):
+            short = call.args[1].value
+            targets.add(short)
+            # We can't resolve the module alias here, but the short
+            # name is enough for patch matching in the call graph.
+
+    # 1. Extract from decorators
     for decorator in node.decorator_list:
         if isinstance(decorator, ast.Call):
-            func = decorator.func
-            is_patch = (
-                isinstance(func, ast.Name)
-                and func.id == "patch"
-                or isinstance(func, ast.Attribute)
-                and func.attr == "patch"
-            )
-            if is_patch and decorator.args and isinstance(decorator.args[0], ast.Constant):
-                target = decorator.args[0].value
-                if isinstance(target, str):
-                    targets.add(target)
-                    targets.add(target.rsplit(".", 1)[-1])
+            _process_patch_call(decorator)
+
+    # 2. Extract from `with patch(...)` context managers in the body
+    if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef)):
+        for child in ast.walk(node):
+            if isinstance(child, ast.With):
+                for item in child.items:
+                    ctx = item.context_expr
+                    if isinstance(ctx, ast.Call):
+                        _process_patch_call(ctx)
+
     return targets
 
 
@@ -210,19 +358,303 @@ def _get_range_count(node: ast.Call) -> int | None:
     return None  # pragma: no cover
 
 
+# ── Call-graph builder ────────────────────────────────────────────────────────
+#
+# The static AST analyzer can only see direct calls in test functions.
+# It cannot trace transitive calls through CliRunner.invoke(main, ...)
+# → main() → update_doc_versions() → subprocess.run().
+#
+# The call-graph builder parses all source files in the package and builds
+# a map: function_name → set of function_names it calls.
+# When a test calls runner.invoke(target, ...), we trace the call graph
+# from target to find all reachable functions, then check if any of them
+# call subprocess.run (or other dangerous functions) without being patched.
+
+
+# Dangerous functions that should never run in unit tests.
+# Maps full call name → description.
+_DANGEROUS_CALLS: dict[str, str] = {
+    "subprocess.run": "spawns a real subprocess",
+    "subprocess.call": "spawns a real subprocess",
+    "subprocess.check_call": "spawns a real subprocess",
+    "subprocess.check_output": "spawns a real subprocess",
+    "subprocess.Popen": "spawns a real subprocess",
+}
+
+
+@dataclass
+class _FunctionNode:
+    """AST node for a function with its called names."""
+
+    name: str
+    module: str
+    calls: set[str]  # short names of functions called
+    subprocess_calls: set[str]  # dangerous subprocess calls made directly
+    io_calls: set[str]  # known I/O function calls made directly
+
+
+class CallGraph:
+    """Call graph built from source files in a package directory."""
+
+    def __init__(self, src_dir: Path) -> None:
+        self.src_dir = src_dir
+        # Maps "module.func" → _FunctionNode
+        self._nodes: dict[str, _FunctionNode] = {}
+        # Maps short name → list of full names (for resolution)
+        self._by_short: dict[str, list[str]] = {}
+        self._built = False
+
+    def _ensure_built(self) -> None:
+        if self._built:
+            return
+        self._build()
+        self._built = True
+
+    def _build(self) -> None:
+        """Parse all .py files under src_dir and build the call graph."""
+        for py_file in sorted(self.src_dir.rglob("*.py")):
+            try:
+                source = py_file.read_text()
+                tree = ast.parse(source, filename=str(py_file))
+            except (SyntaxError, UnicodeDecodeError):
+                continue
+            # Derive module name from path relative to src_dir
+            rel = py_file.relative_to(self.src_dir)
+            module_parts = list(rel.with_suffix("").parts)
+            if module_parts and module_parts[-1] == "__init__":
+                module_parts = module_parts[:-1]
+            module = ".".join(module_parts)
+            self._scan_module(tree, module)
+
+    def _scan_module(self, tree: ast.Module, module: str) -> None:
+        """Scan a module AST and register all top-level functions.
+
+        Methods defined inside classes are NOT registered — they are called
+        via objects (e.g. ``tea.create_issue()``) and resolving them by short
+        name alone causes false positives when the class is patched (e.g.
+        ``@patch("...TeaCLI")`` mocks all methods).
+        """
+        for node in tree.body:
+            self._scan_node(node, module)
+
+    def _scan_node(self, node: ast.AST, module: str) -> None:
+        """Recursively scan a node, registering non-method functions."""
+        if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef)):
+            self._register_function(node, module)
+            # Don't recurse into function bodies — nested functions are
+            # not callable by name from outside.
+            return
+        if isinstance(node, ast.ClassDef):
+            # Skip class body — methods are not registered.
+            return
+        # Recurse into other compound statements (if/for/try/with/etc.)
+        for child in ast.iter_child_nodes(node):
+            self._scan_node(child, module)
+
+    def _register_function(self, node: ast.FunctionDef | ast.AsyncFunctionDef, module: str) -> None:
+        """Register a function and its direct calls in the call graph."""
+        full_name = f"{module}.{node.name}"
+        calls: set[str] = set()
+        subprocess_calls: set[str] = set()
+        io_calls: set[str] = set()
+
+        for child in ast.walk(node):
+            if isinstance(child, ast.Call):
+                full = _get_full_called_name(child)
+                short = _get_called_name(child)
+                if short:
+                    calls.add(short)
+                if full and full in _DANGEROUS_CALLS:
+                    subprocess_calls.add(full)
+                if short and short in KNOWN_IO_FUNCTIONS:
+                    io_calls.add(short)
+                # KNOWN_SUBPROCESS_HELPERS are intermediate functions (e.g.
+                # run_tests → run_cmd → subprocess.run).  They are already
+                # in *calls* so the BFS will traverse into them and find the
+                # actual subprocess call.  Adding them to *subprocess_calls*
+                # here would cause false positives when the helper itself is
+                # transitively patched (e.g. run_cmd is patched → run_tests
+                # is safe, but would still be reported).
+
+        fn_node = _FunctionNode(
+            name=node.name,
+            module=module,
+            calls=calls,
+            subprocess_calls=subprocess_calls,
+            io_calls=io_calls,
+        )
+        self._nodes[full_name] = fn_node
+        self._by_short.setdefault(node.name, []).append(full_name)
+
+    def find_reachable_dangerous(
+        self,
+        target_name: str,
+        patches: set[str],
+        max_depth: int = 10,
+        import_map: dict[str, str] | None = None,
+    ) -> list[tuple[str, str]]:
+        """Find all dangerous calls reachable from target_name that aren't patched.
+
+        Returns a list of (function_name, description) tuples for each
+        unpatched dangerous call found in the transitive closure.
+
+        If import_map is provided (mapping short names to fully-qualified
+        module paths), it's used to resolve the target precisely instead
+        of matching by short name alone.
+        """
+        self._ensure_built()
+
+        # Resolve target to full name(s)
+        # First try precise resolution via import_map
+        candidates: list[str] = []
+        if import_map and target_name in import_map:
+            full = import_map[target_name]
+            candidates = [full] if full in self._nodes else self._by_short.get(target_name, [])
+        elif target_name in self._nodes:
+            # Already a fully-qualified name (e.g. devx.tools.build_image.main)
+            candidates = [target_name]
+        else:
+            # Fall back to short name resolution
+            short = target_name.rsplit(".", 1)[-1]
+            candidates = self._by_short.get(short, [])
+
+        if not candidates:
+            return []
+
+        visited: set[str] = set()
+        dangerous: list[tuple[str, str]] = []
+        queue: list[tuple[str, int]] = [(c, 0) for c in candidates]
+
+        while queue:
+            full_name, depth = queue.pop(0)
+            if full_name in visited or depth > max_depth:
+                continue
+            visited.add(full_name)
+
+            node = self._nodes.get(full_name)
+            if node is None:
+                continue
+
+            # Check direct subprocess calls
+            for sc in node.subprocess_calls:
+                short = sc.rsplit(".", 1)[-1]
+                if not self._is_patched(sc, short, patches):
+                    desc = _DANGEROUS_CALLS.get(sc, "")
+                    dangerous.append((full_name, desc))
+
+            # Check direct IO calls
+            for io in node.io_calls:
+                if not self._is_patched(io, io, patches):
+                    desc = KNOWN_IO_FUNCTIONS.get(io, "")
+                    if desc:
+                        dangerous.append((full_name, desc))
+
+            # Enqueue called functions — skip if the called function is patched
+            for called_short in node.calls:
+                if self._is_patched(called_short, called_short, patches):
+                    continue
+                # Prefer same-module resolution, then fall back to short name
+                # only if there's a single global match (avoids false positives
+                # when multiple modules define functions with the same name).
+                same_module = f"{node.module}.{called_short}"
+                if same_module in self._nodes and same_module not in visited:
+                    queue.append((same_module, depth + 1))
+                else:
+                    matches = self._by_short.get(called_short, [])
+                    if len(matches) == 1 and matches[0] not in visited:
+                        queue.append((matches[0], depth + 1))
+
+        return dangerous
+
+    @staticmethod
+    def _is_patched(full: str, short: str, patches: set[str]) -> bool:
+        """Check if a function is covered by the test's @patch set."""
+        if short in patches or full in patches:
+            return True
+        # Check if any patch entry ends with ".short" (e.g. "subprocess.run"
+        # is patched by "devx.ci.release.subprocess.run").  Use exact
+        # endswith, not substring, to avoid "run" matching "run_cmd".
+        return any(p.endswith(f".{short}") or p == full for p in patches)
+
+
 # ── Analyzers ─────────────────────────────────────────────────────────────────
 
 
 class TestIsolationVisitor(ast.NodeVisitor):
     """AST visitor that detects un-hermetic test patterns."""
 
-    def __init__(self, file_path: Path, max_loop_iterations: int = DEFAULT_MAX_LOOP_ITERATIONS):
+    def __init__(
+        self,
+        file_path: Path,
+        max_loop_iterations: int = DEFAULT_MAX_LOOP_ITERATIONS,
+        call_graph: CallGraph | None = None,
+    ):
         self.file_path = file_path
         self.max_loop_iterations = max_loop_iterations
+        self.call_graph = call_graph
         self.violations: list[Violation] = []
         self._current_function: TestFunctionInfo | None = None
         self._current_class_patches: set[str] = set()
         self._in_test_class = False
+        self._reload_calls: list[tuple[int, str | None]] = []
+        # Import map: short name → fully-qualified module.func
+        # e.g. {"main": "devx.ci.release.main"} for `from devx.ci.release import main`
+        self._import_map: dict[str, str] = {}
+
+    def visit_Import(self, node: ast.Import) -> None:
+        # Track imports for call-graph resolution
+        if self._current_function is None:
+            for alias in node.names:
+                name = alias.asname or alias.name
+                self._import_map[name] = alias.name
+        # Check for heavy module imports
+        if self._current_function is None:
+            for alias in node.names:
+                mod = alias.name.split(".")[0]
+                if mod in HEAVY_MODULE_IMPORTS:
+                    self.violations.append(
+                        Violation(
+                            file=self.file_path,
+                            line=node.lineno,
+                            col=node.col_offset,
+                            category="heavy-module-import",
+                            message=_(
+                                "Heavy import '{mod}' (~{ms:.0f}ms) at module level — "
+                                "this slows test collection for all tests. "
+                                "Move inside test functions or use lazy import.",
+                                mod=alias.name,
+                                ms=HEAVY_MODULE_IMPORTS[mod],
+                            ),
+                        )
+                    )
+        self.generic_visit(node)
+
+    def visit_ImportFrom(self, node: ast.ImportFrom) -> None:
+        # Track imports for call-graph resolution
+        if self._current_function is None and node.module:
+            for alias in node.names:
+                name = alias.asname or alias.name
+                self._import_map[name] = f"{node.module}.{alias.name}"
+        # Check for heavy module imports
+        if self._current_function is None and node.module:
+            mod = node.module.split(".")[0]
+            if mod in HEAVY_MODULE_IMPORTS:
+                self.violations.append(
+                    Violation(
+                        file=self.file_path,
+                        line=node.lineno,
+                        col=node.col_offset,
+                        category="heavy-module-import",
+                        message=_(
+                            "Heavy import '{mod}' (~{ms:.0f}ms) at module level — "
+                            "this slows test collection for all tests. "
+                            "Move inside test functions or use lazy import.",
+                            mod=node.module,
+                            ms=HEAVY_MODULE_IMPORTS[mod],
+                        ),
+                    )
+                )
+        self.generic_visit(node)
 
     def visit_ClassDef(self, node: ast.ClassDef) -> None:
         old_class_patches = self._current_class_patches
@@ -258,9 +690,33 @@ class TestIsolationVisitor(ast.NodeVisitor):
             is_test=True,
         )
         old_func = self._current_function
+        old_reloads = self._reload_calls
         self._current_function = info
+        self._reload_calls = []
         self.generic_visit(node)
+        # Check 7: importlib.reload without cleanup
+        # Each reload mutates global module state.  An odd number of
+        # reloads means the module is left in a modified state.
+        if len(self._reload_calls) % 2 != 0:
+            first_line, mod_name = self._reload_calls[0]
+            self.violations.append(
+                Violation(
+                    file=self.file_path,
+                    line=first_line,
+                    col=0,
+                    category="reload-without-cleanup",
+                    message=_(
+                        "importlib.reload({mod}) called {n} time(s) in test '{test}' — "
+                        "odd count leaves module in modified state. "
+                        "Add a final reload to restore defaults or wrap in try/finally.",
+                        mod=mod_name or "module",
+                        n=len(self._reload_calls),
+                        test=info.name,
+                    ),
+                )
+            )
         self._current_function = old_func
+        self._reload_calls = old_reloads
 
     def visit_Call(self, node: ast.Call) -> None:
         if self._current_function is None:
@@ -271,6 +727,16 @@ class TestIsolationVisitor(ast.NodeVisitor):
         short_name = _get_called_name(node)
         all_patches = self._current_function.patches | self._current_function.class_patches
 
+        # Track importlib.reload calls for cleanup check
+        if full_name == "importlib.reload" or (short_name == "reload" and "reload" in all_patches):
+            mod_arg = node.args[0] if node.args else None
+            mod_name = None
+            if isinstance(mod_arg, ast.Name):
+                mod_name = mod_arg.id
+            elif isinstance(mod_arg, ast.Attribute):
+                mod_name = mod_arg.attr
+            self._reload_calls.append((node.lineno, mod_name))
+
         # Check 1: subprocess.run / subprocess.call / subprocess.Popen etc.
         if full_name and full_name.startswith("subprocess."):
             method = full_name.split(".", 1)[1]
@@ -368,6 +834,52 @@ class TestIsolationVisitor(ast.NodeVisitor):
                 )
             )
 
+        # Check 8: CliRunner.invoke / runner.invoke — trace call graph
+        # Detect runner.invoke(target, ...) or CliRunner().invoke(target, ...)
+        if short_name == "invoke" and self.call_graph is not None and node.args:
+            target = node.args[0]
+            target_name: str | None = None
+            if isinstance(target, ast.Name):
+                target_name = target.id
+            elif isinstance(target, ast.Attribute):
+                # Handle module.func pattern (e.g. build_image.main)
+                # Resolve module prefix via import_map
+                if isinstance(target.value, ast.Name):
+                    mod_short = target.value.id
+                    mod_full = self._import_map.get(mod_short)
+                    target_name = f"{mod_full}.{target.attr}" if mod_full else target.attr
+                else:
+                    target_name = target.attr
+            if target_name:
+                dangerous = self.call_graph.find_reachable_dangerous(
+                    target_name, all_patches, import_map=self._import_map
+                )
+                if dangerous:
+                    # Deduplicate by function name
+                    seen: set[str] = set()
+                    unique: list[tuple[str, str]] = []
+                    for func, desc in dangerous:
+                        if func not in seen:
+                            seen.add(func)
+                            unique.append((func, desc))
+                    funcs_desc = "; ".join(f"{f} ({d})" for f, d in unique[:3])
+                    self.violations.append(
+                        Violation(
+                            file=self.file_path,
+                            line=node.lineno,
+                            col=node.col_offset,
+                            category="transitive-subprocess",
+                            message=_(
+                                "CliRunner.invoke({target}) in test '{test}' reaches "
+                                "unpatched dangerous functions: {funcs}. "
+                                "Add @patch for each or patch the calling function.",
+                                target=target_name,
+                                test=self._current_function.name,
+                                funcs=funcs_desc,
+                            ),
+                        )
+                    )
+
         self.generic_visit(node)
 
     def visit_For(self, node: ast.For) -> None:
@@ -402,7 +914,11 @@ def find_test_files(test_path: Path) -> list[Path]:
     return sorted(test_path.rglob("test_*.py"))
 
 
-def analyze_file(file_path: Path, max_loop_iterations: int = DEFAULT_MAX_LOOP_ITERATIONS) -> list[Violation]:
+def analyze_file(
+    file_path: Path,
+    max_loop_iterations: int = DEFAULT_MAX_LOOP_ITERATIONS,
+    call_graph: CallGraph | None = None,
+) -> list[Violation]:
     """Analyze a single test file for isolation violations.
 
     Files in ``integration/`` directories are skipped — integration tests
@@ -424,7 +940,7 @@ def analyze_file(file_path: Path, max_loop_iterations: int = DEFAULT_MAX_LOOP_IT
             )
         ]
 
-    visitor = TestIsolationVisitor(file_path, max_loop_iterations)
+    visitor = TestIsolationVisitor(file_path, max_loop_iterations, call_graph)
     visitor.visit(tree)
     return visitor.violations
 
@@ -433,12 +949,13 @@ def analyze_test_files(
     test_path: Path,
     max_loop_iterations: int = DEFAULT_MAX_LOOP_ITERATIONS,
     categories: set[str] | None = None,
+    call_graph: CallGraph | None = None,
 ) -> list[Violation]:
     """Analyze all test files under test_path. Returns list of violations."""
     test_files = find_test_files(test_path)
     all_violations: list[Violation] = []
     for file_path in test_files:
-        violations = analyze_file(file_path, max_loop_iterations)
+        violations = analyze_file(file_path, max_loop_iterations, call_graph)
         if categories:
             violations = [v for v in violations if v.category in categories]
         all_violations.extend(violations)
@@ -449,23 +966,17 @@ def analyze_test_files(
 #
 # When devx is installed, pytest auto-discovers this plugin via the
 # `pytest11` entry point.  The plugin runs static analysis on every
-# test file during collection and emits warnings for violations.
-# Use --strict-test-isolation to promote warnings to errors.
+# test file during collection and **fails** on any violation.
+# It also wraps subprocess at runtime to catch transitive leaks.
 
 
 def pytest_addoption(parser):  # type: ignore[no-untyped-def]  # pragma: no cover
     """Register pytest command-line options."""
-    parser.addoption(
-        "--strict-test-isolation",
-        action="store_true",
-        default=False,
-        help="Fail the test run if any test isolation violations are found.",
-    )
     parser.addoption(
         "--no-test-isolation",
         action="store_true",
         default=False,
-        help="Disable test isolation static analysis.",
+        help="Disable test isolation static analysis and runtime subprocess audit.",
     )
     parser.addoption(
         "--test-isolation-max-loop",
@@ -476,46 +987,129 @@ def pytest_addoption(parser):  # type: ignore[no-untyped-def]  # pragma: no cove
 
 
 def pytest_collection_finish(session):  # type: ignore[no-untyped-def]  # pragma: no cover
-    """Run static analysis after all test files are collected."""
+    """Run static analysis after all test files are collected. Always strict."""
     if session.config.getoption("--no-test-isolation"):
         return
 
-    strict = session.config.getoption("--strict-test-isolation")
     max_loop = session.config.getoption("--test-isolation-max-loop")
 
-    # Analyze all collected test files
+    # Build call graph from source directory for transitive analysis
+    call_graph: CallGraph | None = None
+    for item in session.items:
+        fspath = Path(str(item.fspath))
+        for parent in fspath.parents:
+            src_dir = parent / "src"
+            if src_dir.is_dir():
+                call_graph = CallGraph(src_dir)
+                break
+        if call_graph is not None:
+            break
+
     test_files: set[Path] = set()
     for item in session.items:
         test_files.add(Path(str(item.fspath)))
 
     all_violations: list[Violation] = []
     for file_path in sorted(test_files):
-        violations = analyze_file(file_path, max_loop)
+        violations = analyze_file(file_path, max_loop, call_graph)
         all_violations.extend(violations)
 
     if not all_violations:
         return
 
-    # Emit warnings
-    import warnings
+    # transitive-subprocess is advisory (static can't predict early exits).
+    # All other categories are hard errors.
+    errors = [v for v in all_violations if v.category != "transitive-subprocess"]
+    transitive = [v for v in all_violations if v.category == "transitive-subprocess"]
 
-    for v in sorted(all_violations, key=lambda x: (str(x.file), x.line)):
-        msg = f"Test isolation violation: {v.format()}"
-        warnings.warn(msg, UserWarning, stacklevel=2)
-
-    if strict:
-        count = len(all_violations)
-        files = len({v.file for v in all_violations})
+    if errors:
+        count = len(errors)
+        files = len({v.file for v in errors})
         click.echo(
             _(
-                "\nTest isolation check FAILED: {count} violation(s) in {files} file(s).\n"
-                "Fix: add @patch decorators for subprocess/time.sleep calls, "
-                "or patch the calling function.\n",
+                "\nTest isolation check FAILED: {count} violation(s) in {files} file(s).\n",
                 count=count,
                 files=files,
             ),
             err=True,
         )
+        for v in sorted(errors, key=lambda x: (str(x.file), x.line)):
+            click.echo(f"  {v.format()}", err=True)
+        click.echo(
+            _(
+                "Fix: add @patch decorators or with patch() context managers "
+                "for subprocess/time.sleep calls, or patch the calling function.\n"
+            ),
+            err=True,
+        )
+        import pytest
+
+        pytest.fail(
+            f"Test isolation: {count} violation(s) found. See output above.",
+            pytrace=False,
+        )
+
+    # transitive-subprocess warnings are advisory — runtime audit is authoritative
+    if transitive:
+        import warnings
+
+        for v in sorted(transitive, key=lambda x: (str(x.file), x.line)):
+            msg = f"Test isolation advisory: {v.format()}"
+            warnings.warn(msg, UserWarning, stacklevel=2)
+
+
+# ── Runtime subprocess audit hooks ────────────────────────────────────────────
+
+
+def _is_integration_test(item: object) -> bool:
+    """Check if a test item is an integration test."""
+    markers = getattr(item, "keywords", {})
+    if "integration" in markers:
+        return True
+    fspath = str(getattr(item, "fspath", ""))
+    return "integration" in fspath
+
+
+def pytest_runtest_setup(item: object) -> None:  # type: ignore[no-untyped-def]  # pragma: no cover
+    """Start subprocess audit for non-integration tests."""
+    config = getattr(item, "config", None)
+    if config is None:
+        return
+    if config.getoption("--no-test-isolation"):
+        return
+    if _is_integration_test(item):
+        return
+    _audit.start_test()
+
+
+def pytest_runtest_teardown(item: object, nextitem: object) -> None:  # type: ignore[no-untyped-def]  # pragma: no cover
+    """Fail test if real subprocess calls were made without @patch."""
+    config = getattr(item, "config", None)
+    if config is None:
+        return
+    if config.getoption("--no-test-isolation"):
+        return
+    if _is_integration_test(item):
+        return
+    calls = _audit.stop_test()
+    if not calls:
+        return
+
+    test_name = getattr(item, "name", str(item))
+    lines = [
+        _(
+            "Real subprocess call(s) detected in test '{test}' without @patch:",
+            test=test_name,
+        )
+    ]
+    for func_name, cmd in calls:
+        lines.append(f"  {func_name}({cmd})")
+    lines.append(_('Add @patch("subprocess.run") or patch the calling function to fix this.'))
+    msg = "\n".join(lines)
+
+    import pytest
+
+    pytest.fail(msg, pytrace=False)
 
 
 # ── Standalone CLI ────────────────────────────────────────────────────────────
@@ -538,59 +1132,103 @@ def pytest_collection_finish(session):  # type: ignore[no-untyped-def]  # pragma
     show_default=True,
     help="Maximum allowed iterations in a single test loop.",
 )
-@click.option(
-    "--strict",
-    is_flag=True,
-    default=False,
-    help="Treat warnings as errors (non-zero exit on any violation).",
-)
 @click.option(
     "--categories",
     type=str,
     default="",
     help="Comma-separated list of categories to check (default: all). "
-    "Available: unpatched-subprocess, unpatched-sleep, unpatched-helper, excessive-iterations",
+    "Available: unpatched-subprocess, unpatched-sleep, unpatched-helper, "
+    "excessive-iterations, heavy-module-import, reload-without-cleanup, "
+    "transitive-subprocess",
 )
-def cli(test_paths: tuple[Path, ...], max_loop_iterations: int, strict: bool, categories: str) -> None:
-    """Check test files for un-hermetic patterns that cause slow or flaky tests."""
+@click.option(
+    "--src-dir",
+    type=click.Path(exists=True, file_okay=False, path_type=Path),
+    default=None,
+    help="Source directory for call-graph analysis (auto-detected if omitted).",
+)
+def cli(
+    test_paths: tuple[Path, ...],
+    max_loop_iterations: int,
+    categories: str,
+    src_dir: Path | None,
+) -> None:
+    """Check test files for un-hermetic patterns that cause slow or flaky tests.
+
+    Always exits non-zero on any hard violation. Transitive-subprocess
+    findings are reported as advisories (exit 0) since static analysis
+    can't predict early exits — the runtime audit is authoritative.
+    """
     allowed: set[str] | None = None
     if categories:
         allowed = {c.strip() for c in categories.split(",")}
 
+    # Build call graph for transitive subprocess detection
+    call_graph: CallGraph | None = None
+    if src_dir is not None:
+        call_graph = CallGraph(src_dir)
+    else:
+        for tp in test_paths:
+            for parent in Path(tp).resolve().parents:
+                candidate = parent / "src"
+                if candidate.is_dir():
+                    call_graph = CallGraph(candidate)
+                    break
+            if call_graph is not None:
+                break
+
     all_violations: list[Violation] = []
     total_files = 0
     for test_path in test_paths:
-        violations = analyze_test_files(test_path, max_loop_iterations, allowed)
+        violations = analyze_test_files(test_path, max_loop_iterations, allowed, call_graph)
         all_violations.extend(violations)
         total_files += len(find_test_files(test_path))
 
-    if not all_violations:
+    errors = [v for v in all_violations if v.category != "transitive-subprocess"]
+    advisories = [v for v in all_violations if v.category == "transitive-subprocess"]
+
+    if not errors and not advisories:
         click.echo(
             _("Test isolation check passed: {count} test files analyzed, no violations found.", count=total_files)
         )
         sys.exit(0)
 
-    click.echo(
-        _(
-            "Test isolation check FAILED: {count} violation(s) found in {files} test file(s).",
-            count=len(all_violations),
-            files=len({v.file for v in all_violations}),
-        ),
-        err=True,
-    )
-    click.echo("")
-    for v in sorted(all_violations, key=lambda x: (str(x.file), x.line)):
-        click.echo(f"  {v.format()}", err=True)
+    if errors:
+        click.echo(
+            _(
+                "Test isolation check FAILED: {count} violation(s) in {files} file(s).",
+                count=len(errors),
+                files=len({v.file for v in errors}),
+            ),
+            err=True,
+        )
+        click.echo("")
+        for v in sorted(errors, key=lambda x: (str(x.file), x.line)):
+            click.echo(f"  {v.format()}", err=True)
+        click.echo("")
+        click.echo(
+            _(
+                "Fix: add @patch decorators or with patch() context managers "
+                "for subprocess/time.sleep calls, or patch the calling function."
+            ),
+            err=True,
+        )
+        sys.exit(1)
 
-    click.echo("")
+    # Advisories only — exit 0 but print them
     click.echo(
         _(
-            "Fix: add @patch decorators for subprocess/time.sleep calls, "
-            "or patch the calling function. Use property-based testing for statistical tests."
-        ),
-        err=True,
+            "Test isolation check passed with {count} advisory warning(s) in {files} file(s).",
+            count=len(advisories),
+            files=len({v.file for v in advisories}),
+        )
     )
-    sys.exit(1)
+    click.echo(_("Transitive-subprocess advisories (runtime audit is authoritative):"))
+    for v in sorted(advisories, key=lambda x: (str(x.file), x.line))[:10]:
+        click.echo(f"  {v.format()}")
+    if len(advisories) > 10:
+        click.echo(f"  ... and {len(advisories) - 10} more")
+    sys.exit(0)
 
 
 if __name__ == "__main__":  # pragma: no cover

src/devx/translations.json

@@ -183,14 +183,6 @@
     "ru": "\nTag → Commit alignment:",
     "zh": "\nTag → Commit alignment:"
   },
-  "\nTest isolation check FAILED: {count} violation(s) in {files} file(s).\nFix: add @patch decorators for subprocess/time.sleep calls, or patch the calling function.\n": {
-    "bg": "\nПроверката за изолация на тестове НЕ ПРЕМИНА: {count} нарушения в {files} файла.\nРешение: добавете @patch декоратори за subprocess/time.sleep извиквания или patch-нете извикващата функция.\n",
-    "de": "\nTestisolationsprüfung FEHLGESCHLAGEN: {count} Verstoß/Verstöße in {files} Datei(en).\nBehebung: @patch-Dekoratoren für subprocess/time.sleep-Aufrufe hinzufügen oder die aufrufende Funktion patchen.\n",
-    "en": "\nTest isolation check FAILED: {count} violation(s) in {files} file(s).\nFix: add @patch decorators for subprocess/time.sleep calls, or patch the calling function.\n",
-    "pl": "\nSprawdzenie izolacji testów NIE ZALICZONE: {count} naruszeń w {files} plikach.\nNaprawa: dodaj dekoratory @patch dla wywołań subprocess/time.sleep lub patchuj wywołującą funkcję.\n",
-    "ru": "\nПроверка изоляции тестов НЕ ПРОЙДЕНА: {count} нарушений в {files} файлах.\nИсправление: добавьте декораторы @patch для вызовов subprocess/time.sleep или patch вызывающую функцию.\n",
-    "zh": "\n测试隔离检查失败：在 {files} 个文件中有 {count} 个违规。\n修复：为 subprocess/time.sleep 调用添加 @patch 装饰器，或 patch 调用函数。\n"
-  },
   "\nUntagged release commits:": {
     "bg": "\nUntagged release commits:",
     "de": "\nUntagged release commits:",
@@ -1583,14 +1575,6 @@
     "ru": "Fetching origin/master...",
     "zh": "Fetching origin/master..."
   },
-  "Fix: add @patch decorators for subprocess/time.sleep calls, or patch the calling function. Use property-based testing for statistical tests.": {
-    "bg": "Решение: добавете @patch декоратори за subprocess/time.sleep извиквания или patch-нете извикващата функция. Използвайте property-based тестове за статистически тестове.",
-    "de": "Behebung: @patch-Dekoratoren für subprocess/time.sleep-Aufrufe hinzufügen oder die aufrufende Funktion patchen. Property-based testing für statistische Tests verwenden.",
-    "en": "Fix: add @patch decorators for subprocess/time.sleep calls, or patch the calling function. Use property-based testing for statistical tests.",
-    "pl": "Naprawa: dodaj dekoratory @patch dla wywołań subprocess/time.sleep lub patchuj wywołującą funkcję. Użyj testów opartych na właściwościach dla testów statystycznych.",
-    "ru": "Исправление: добавьте декораторы @patch для вызовов subprocess/time.sleep или patch вызывающую функцию. Используйте property-based тестирование для статистических тестов.",
-    "zh": "修复：为 subprocess/time.sleep 调用添加 @patch 装饰器，或 patch 调用函数。对统计测试使用基于属性的测试。"
-  },
   "Force-push failed:\n{error}\nThe remote may have unexpected commits. Fetch and try again.": {
     "bg": "Force-push failed:\n{error}\nThe remote may have unexpected commits. Fetch and try again.",
     "de": "Force-push failed:\n{error}\nThe remote may have unexpected commits. Fetch and try again.",
@@ -2903,14 +2887,6 @@
     "ru": "Test '{name}' took {elapsed:.2f}s (limit: {limit}s). Optimise: use lighter fixtures, reduce I/O, or mock external calls.",
     "zh": "Test '{name}' took {elapsed:.2f}s (limit: {limit}s). Optimise: use lighter fixtures, reduce I/O, or mock external calls."
   },
-  "Test isolation check FAILED: {count} violation(s) found in {files} test file(s).": {
-    "bg": "Проверката за изолация на тестове НЕ ПРЕМИНА: открити са {count} нарушения в {files} тестови файла.",
-    "de": "Testisolationsprüfung FEHLGESCHLAGEN: {count} Verstoß/Verstöße in {files} Testdatei(en) gefunden.",
-    "en": "Test isolation check FAILED: {count} violation(s) found in {files} test file(s).",
-    "pl": "Sprawdzenie izolacji testów NIE ZALICZONE: znaleziono {count} naruszeń w {files} plikach testowych.",
-    "ru": "Проверка изоляции тестов НЕ ПРОЙДЕНА: найдено {count} нарушений в {files} тестовых файлах.",
-    "zh": "测试隔离检查失败：在 {files} 个测试文件中发现 {count} 个违规。"
-  },
   "Test isolation check passed: {count} test files analyzed, no violations found.": {
     "bg": "Проверката за изолация на тестове премина: анализирани са {count} тестови файла, няма нарушения.",
     "de": "Testisolationsprüfung bestanden: {count} Testdateien analysiert, keine Verstöße gefunden.",
@@ -3686,5 +3662,165 @@
     "pl": "{separator}",
     "ru": "{separator}",
     "zh": "{separator}"
+  },
+  "\nTest isolation check FAILED: {count} violation(s) in {files} file(s).\n": {
+    "bg": "\nTest isolation check FAILED: {count} violation(s) in {files} file(s).\n",
+    "de": "\nTest isolation check FAILED: {count} violation(s) in {files} file(s).\n",
+    "en": "\nTest isolation check FAILED: {count} violation(s) in {files} file(s).\n",
+    "pl": "\nTest isolation check FAILED: {count} violation(s) in {files} file(s).\n",
+    "ru": "\nTest isolation check FAILED: {count} violation(s) in {files} file(s).\n",
+    "zh": "\nTest isolation check FAILED: {count} violation(s) in {files} file(s).\n"
+  },
+  "  Fix the PR title with:\n    python3 -m devx.ci.fix_pr_title --repo {repo} --pr-number {pr}\n  Or manually set the PR title to: '{expected}'": {
+    "bg": "  Fix the PR title with:\n    python3 -m devx.ci.fix_pr_title --repo {repo} --pr-number {pr}\n  Or manually set the PR title to: '{expected}'",
+    "de": "  Fix the PR title with:\n    python3 -m devx.ci.fix_pr_title --repo {repo} --pr-number {pr}\n  Or manually set the PR title to: '{expected}'",
+    "en": "  Fix the PR title with:\n    python3 -m devx.ci.fix_pr_title --repo {repo} --pr-number {pr}\n  Or manually set the PR title to: '{expected}'",
+    "pl": "  Fix the PR title with:\n    python3 -m devx.ci.fix_pr_title --repo {repo} --pr-number {pr}\n  Or manually set the PR title to: '{expected}'",
+    "ru": "  Fix the PR title with:\n    python3 -m devx.ci.fix_pr_title --repo {repo} --pr-number {pr}\n  Or manually set the PR title to: '{expected}'",
+    "zh": "  Fix the PR title with:\n    python3 -m devx.ci.fix_pr_title --repo {repo} --pr-number {pr}\n  Or manually set the PR title to: '{expected}'"
+  },
+  "Add @patch(\"subprocess.run\") or patch the calling function to fix this.": {
+    "bg": "Add @patch(\"subprocess.run\") or patch the calling function to fix this.",
+    "de": "Add @patch(\"subprocess.run\") or patch the calling function to fix this.",
+    "en": "Add @patch(\"subprocess.run\") or patch the calling function to fix this.",
+    "pl": "Add @patch(\"subprocess.run\") or patch the calling function to fix this.",
+    "ru": "Add @patch(\"subprocess.run\") or patch the calling function to fix this.",
+    "zh": "Add @patch(\"subprocess.run\") or patch the calling function to fix this."
+  },
+  "Branch name (auto-fetched from PR if not given)": {
+    "bg": "Branch name (auto-fetched from PR if not given)",
+    "de": "Branch name (auto-fetched from PR if not given)",
+    "en": "Branch name (auto-fetched from PR if not given)",
+    "pl": "Branch name (auto-fetched from PR if not given)",
+    "ru": "Branch name (auto-fetched from PR if not given)",
+    "zh": "Branch name (auto-fetched from PR if not given)"
+  },
+  "CI_GITEA_API_TOKEN not set: {error}": {
+    "bg": "CI_GITEA_API_TOKEN not set: {error}",
+    "de": "CI_GITEA_API_TOKEN not set: {error}",
+    "en": "CI_GITEA_API_TOKEN not set: {error}",
+    "pl": "CI_GITEA_API_TOKEN not set: {error}",
+    "ru": "CI_GITEA_API_TOKEN not set: {error}",
+    "zh": "CI_GITEA_API_TOKEN not set: {error}"
+  },
+  "CliRunner.invoke({target}) in test '{test}' reaches unpatched dangerous functions: {funcs}. Add @patch for each or patch the calling function.": {
+    "bg": "CliRunner.invoke({target}) in test '{test}' reaches unpatched dangerous functions: {funcs}. Add @patch for each or patch the calling function.",
+    "de": "CliRunner.invoke({target}) in test '{test}' reaches unpatched dangerous functions: {funcs}. Add @patch for each or patch the calling function.",
+    "en": "CliRunner.invoke({target}) in test '{test}' reaches unpatched dangerous functions: {funcs}. Add @patch for each or patch the calling function.",
+    "pl": "CliRunner.invoke({target}) in test '{test}' reaches unpatched dangerous functions: {funcs}. Add @patch for each or patch the calling function.",
+    "ru": "CliRunner.invoke({target}) in test '{test}' reaches unpatched dangerous functions: {funcs}. Add @patch for each or patch the calling function.",
+    "zh": "CliRunner.invoke({target}) in test '{test}' reaches unpatched dangerous functions: {funcs}. Add @patch for each or patch the calling function."
+  },
+  "Could not determine branch name from PR #{pr}": {
+    "bg": "Could not determine branch name from PR #{pr}",
+    "de": "Could not determine branch name from PR #{pr}",
+    "en": "Could not determine branch name from PR #{pr}",
+    "pl": "Could not determine branch name from PR #{pr}",
+    "ru": "Could not determine branch name from PR #{pr}",
+    "zh": "Could not determine branch name from PR #{pr}"
+  },
+  "Failed to fetch PR #{pr}: {error}": {
+    "bg": "Failed to fetch PR #{pr}: {error}",
+    "de": "Failed to fetch PR #{pr}: {error}",
+    "en": "Failed to fetch PR #{pr}: {error}",
+    "pl": "Failed to fetch PR #{pr}: {error}",
+    "ru": "Failed to fetch PR #{pr}: {error}",
+    "zh": "Failed to fetch PR #{pr}: {error}"
+  },
+  "Failed to update PR #{pr}: {error}": {
+    "bg": "Failed to update PR #{pr}: {error}",
+    "de": "Failed to update PR #{pr}: {error}",
+    "en": "Failed to update PR #{pr}: {error}",
+    "pl": "Failed to update PR #{pr}: {error}",
+    "ru": "Failed to update PR #{pr}: {error}",
+    "zh": "Failed to update PR #{pr}: {error}"
+  },
+  "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.": {
+    "bg": "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.",
+    "de": "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.",
+    "en": "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.",
+    "pl": "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.",
+    "ru": "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.",
+    "zh": "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function."
+  },
+  "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.\n": {
+    "bg": "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.\n",
+    "de": "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.\n",
+    "en": "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.\n",
+    "pl": "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.\n",
+    "ru": "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.\n",
+    "zh": "Fix: add @patch decorators or with patch() context managers for subprocess/time.sleep calls, or patch the calling function.\n"
+  },
+  "Heavy import '{mod}' (~{ms:.0f}ms) at module level — this slows test collection for all tests. Move inside test functions or use lazy import.": {
+    "bg": "Heavy import '{mod}' (~{ms:.0f}ms) at module level — this slows test collection for all tests. Move inside test functions or use lazy import.",
+    "de": "Heavy import '{mod}' (~{ms:.0f}ms) at module level — this slows test collection for all tests. Move inside test functions or use lazy import.",
+    "en": "Heavy import '{mod}' (~{ms:.0f}ms) at module level — this slows test collection for all tests. Move inside test functions or use lazy import.",
+    "pl": "Heavy import '{mod}' (~{ms:.0f}ms) at module level — this slows test collection for all tests. Move inside test functions or use lazy import.",
+    "ru": "Heavy import '{mod}' (~{ms:.0f}ms) at module level — this slows test collection for all tests. Move inside test functions or use lazy import.",
+    "zh": "Heavy import '{mod}' (~{ms:.0f}ms) at module level — this slows test collection for all tests. Move inside test functions or use lazy import."
+  },
+  "No task ID found in branch '{branch}'. Expected format: {prefix}-N-description.": {
+    "bg": "No task ID found in branch '{branch}'. Expected format: {prefix}-N-description.",
+    "de": "No task ID found in branch '{branch}'. Expected format: {prefix}-N-description.",
+    "en": "No task ID found in branch '{branch}'. Expected format: {prefix}-N-description.",
+    "pl": "No task ID found in branch '{branch}'. Expected format: {prefix}-N-description.",
+    "ru": "No task ID found in branch '{branch}'. Expected format: {prefix}-N-description.",
+    "zh": "No task ID found in branch '{branch}'. Expected format: {prefix}-N-description."
+  },
+  "PR number to fix": {
+    "bg": "PR number to fix",
+    "de": "PR number to fix",
+    "en": "PR number to fix",
+    "pl": "PR number to fix",
+    "ru": "PR number to fix",
+    "zh": "PR number to fix"
+  },
+  "Real subprocess call(s) detected in test '{test}' without @patch:": {
+    "bg": "Real subprocess call(s) detected in test '{test}' without @patch:",
+    "de": "Real subprocess call(s) detected in test '{test}' without @patch:",
+    "en": "Real subprocess call(s) detected in test '{test}' without @patch:",
+    "pl": "Real subprocess call(s) detected in test '{test}' without @patch:",
+    "ru": "Real subprocess call(s) detected in test '{test}' without @patch:",
+    "zh": "Real subprocess call(s) detected in test '{test}' without @patch:"
+  },
+  "Show what would change without updating": {
+    "bg": "Show what would change without updating",
+    "de": "Show what would change without updating",
+    "en": "Show what would change without updating",
+    "pl": "Show what would change without updating",
+    "ru": "Show what would change without updating",
+    "zh": "Show what would change without updating"
+  },
+  "Test isolation check FAILED: {count} violation(s) in {files} file(s).": {
+    "bg": "Test isolation check FAILED: {count} violation(s) in {files} file(s).",
+    "de": "Test isolation check FAILED: {count} violation(s) in {files} file(s).",
+    "en": "Test isolation check FAILED: {count} violation(s) in {files} file(s).",
+    "pl": "Test isolation check FAILED: {count} violation(s) in {files} file(s).",
+    "ru": "Test isolation check FAILED: {count} violation(s) in {files} file(s).",
+    "zh": "Test isolation check FAILED: {count} violation(s) in {files} file(s)."
+  },
+  "Test isolation check passed with {count} advisory warning(s) in {files} file(s).": {
+    "bg": "Test isolation check passed with {count} advisory warning(s) in {files} file(s).",
+    "de": "Test isolation check passed with {count} advisory warning(s) in {files} file(s).",
+    "en": "Test isolation check passed with {count} advisory warning(s) in {files} file(s).",
+    "pl": "Test isolation check passed with {count} advisory warning(s) in {files} file(s).",
+    "ru": "Test isolation check passed with {count} advisory warning(s) in {files} file(s).",
+    "zh": "Test isolation check passed with {count} advisory warning(s) in {files} file(s)."
+  },
+  "Transitive-subprocess advisories (runtime audit is authoritative):": {
+    "bg": "Transitive-subprocess advisories (runtime audit is authoritative):",
+    "de": "Transitive-subprocess advisories (runtime audit is authoritative):",
+    "en": "Transitive-subprocess advisories (runtime audit is authoritative):",
+    "pl": "Transitive-subprocess advisories (runtime audit is authoritative):",
+    "ru": "Transitive-subprocess advisories (runtime audit is authoritative):",
+    "zh": "Transitive-subprocess advisories (runtime audit is authoritative):"
+  },
+  "importlib.reload({mod}) called {n} time(s) in test '{test}' — odd count leaves module in modified state. Add a final reload to restore defaults or wrap in try/finally.": {
+    "bg": "importlib.reload({mod}) called {n} time(s) in test '{test}' — odd count leaves module in modified state. Add a final reload to restore defaults or wrap in try/finally.",
+    "de": "importlib.reload({mod}) called {n} time(s) in test '{test}' — odd count leaves module in modified state. Add a final reload to restore defaults or wrap in try/finally.",
+    "en": "importlib.reload({mod}) called {n} time(s) in test '{test}' — odd count leaves module in modified state. Add a final reload to restore defaults or wrap in try/finally.",
+    "pl": "importlib.reload({mod}) called {n} time(s) in test '{test}' — odd count leaves module in modified state. Add a final reload to restore defaults or wrap in try/finally.",
+    "ru": "importlib.reload({mod}) called {n} time(s) in test '{test}' — odd count leaves module in modified state. Add a final reload to restore defaults or wrap in try/finally.",
+    "zh": "importlib.reload({mod}) called {n} time(s) in test '{test}' — odd count leaves module in modified state. Add a final reload to restore defaults or wrap in try/finally."
   }
 }