chore: archive tools/ui_inspector snapshot before migration removal.

Keep the last in-template copy on main so history can restore it; product continues in jiangchang-ui-recorder.

Co-authored-by: Cursor <cursoragent@cursor.com>

tools/ui_inspector/core/policies/__init__.py

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+"""Surface-independent decision policies."""
+
+from .element_identity import element_identity_key
+from .target_scoring import resolve_browser_target
+
+__all__ = ["element_identity_key", "resolve_browser_target"]
+

tools/ui_inspector/core/policies/element_identity.py

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+"""Stable element identity independent of transient value/focus classes."""
+
+from __future__ import annotations
+
+import hashlib
+import json
+import re
+from typing import Any
+from urllib.parse import urlsplit
+
+
+def _origin(url: str) -> str:
+    try:
+        parts = urlsplit(url or "")
+        return f"{parts.scheme}://{parts.netloc}" if parts.netloc else ""
+    except Exception:
+        return ""
+
+
+def _structural_css(css: str) -> str:
+    # Classes frequently encode focus/hover/build hashes.  Keep tag depth and
+    # stable IDs; that distinguishes nested anonymous nodes without freezing a
+    # generated class list into identity.
+    parts = []
+    for raw in (css or "").split(">"):
+        part = raw.strip()
+        tag_match = re.match(r"^[A-Za-z][\w-]*", part)
+        id_match = re.search(r"#[A-Za-z0-9_-]+", part)
+        tag = tag_match.group(0).lower() if tag_match else "*"
+        parts.append(tag + (id_match.group(0) if id_match else ""))
+    return ">".join(parts)
+
+
+def element_identity_key(
+    element: dict[str, Any], *, surface: str, page_url: str = "", frame_name: str = ""
+) -> str:
+    el = dict(element or {})
+    role = str(el.get("control_type") or el.get("role") or el.get("tag") or "")
+    anchor = ""
+    for key in (
+        "test_id", "automation_id", "id", "name_attr", "href",
+        "placeholder", "aria_label", "label",
+    ):
+        value = str(el.get(key) or "").strip()
+        if value:
+            anchor = f"{key}:{value}"
+            break
+    if not anchor and not el.get("contenteditable"):
+        name = str(el.get("semantic_name") or el.get("name") or "").strip()
+        if name and len(name) <= 96:
+            anchor = f"name:{name}"
+    if not anchor:
+        anchor = f"structure:{_structural_css(str(el.get('css') or ''))}"
+    payload = {
+        "surface": surface or "",
+        "origin": _origin(page_url) if surface == "browser" else "",
+        "frame": frame_name or "",
+        "role": role.lower(),
+        "anchor": anchor,
+    }
+    raw = json.dumps(payload, ensure_ascii=False, sort_keys=True, separators=(",", ":"))
+    return hashlib.sha256(raw.encode("utf-8")).hexdigest()

tools/ui_inspector/core/policies/target_scoring.py

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+"""Distance- and geometry-aware target selection.
+
+The resolver never relies on a product selector.  It ranks the composed path
+using native semantics, explicit accessibility metadata, distance from the hit
+node, and geometry.  Huge ancestors are evidence containers, not controls.
+"""
+
+from __future__ import annotations
+
+import re
+from typing import Any, Iterable
+
+_NATIVE_TAGS = {"button", "a", "input", "textarea", "select", "summary", "label"}
+_INTERACTIVE_ROLES = {
+    "button", "link", "textbox", "combobox", "checkbox", "radio",
+    "menuitem", "option", "tab", "switch", "slider", "spinbutton",
+}
+_ACTION_CLASS_TOKENS = {
+    "button", "btn", "submit", "send", "publish", "post", "play",
+    "pause", "action", "click", "toggle", "menu", "option", "tab",
+}
+_GRAPHIC_LEAF_TAGS = {"path", "use", "g", "svg"}
+
+
+def _tokens(value: str) -> set[str]:
+    value = re.sub(r"([a-z0-9])([A-Z])", r"\1 \2", value or "")
+    return {x.lower() for x in re.split(r"[^A-Za-z0-9]+", value) if x}
+
+
+def _area(rect: dict[str, Any]) -> float:
+    try:
+        return max(0.0, float(rect.get("width") or 0)) * max(
+            0.0, float(rect.get("height") or 0)
+        )
+    except (TypeError, ValueError):
+        return 0.0
+
+
+def _contains(
+    rect: dict[str, Any], x: int | None, y: int | None, *, slop: float = 12.0
+) -> bool:
+    if x is None or y is None or not rect:
+        return True
+    try:
+        return (
+            float(rect.get("left")) - slop <= x <= float(rect.get("right")) + slop
+            and float(rect.get("top")) - slop <= y <= float(rect.get("bottom")) + slop
+        )
+    except (TypeError, ValueError):
+        return True
+
+
+def resolve_browser_target(
+    hit_target: dict[str, Any],
+    candidates: Iterable[dict[str, Any]],
+    *,
+    x: int | None = None,
+    y: int | None = None,
+) -> tuple[dict[str, Any], list[dict[str, Any]]]:
+    """Return the best actionable node and an auditable scored candidate list."""
+    chain = [dict(item or {}) for item in candidates if isinstance(item, dict)]
+    if not chain:
+        chain = [dict(hit_target or {})]
+    hit = dict(hit_target or chain[0] or {})
+    hit_area = max(1.0, _area(hit.get("rect") or {}))
+    scored: list[dict[str, Any]] = []
+
+    for depth, item in enumerate(chain):
+        tag = str(item.get("tag") or "").lower()
+        role = str(item.get("role") or "").lower()
+        explicit_role = str(item.get("explicit_role") or "").lower()
+        rect = dict(item.get("rect") or {})
+        area = _area(rect)
+        score = 24.0 if depth == 0 else 0.0
+        reasons: list[str] = [f"depth={depth}"]
+
+        if tag in _NATIVE_TAGS:
+            score = max(score, 100.0)
+            reasons.append("native_control")
+        if item.get("contenteditable_attr"):
+            score = max(score, 99.0)
+            reasons.append("editable_root")
+        elif item.get("contenteditable"):
+            score = max(score, 82.0)
+            reasons.append("editable_descendant")
+        if explicit_role in _INTERACTIVE_ROLES:
+            score = max(score, 97.0)
+            reasons.append("explicit_interactive_role")
+        elif role in _INTERACTIVE_ROLES:
+            score = max(score, 88.0)
+            reasons.append("computed_interactive_role")
+        if item.get("test_id") or item.get("aria_label"):
+            score = max(score, 91.0)
+            reasons.append("stable_semantic_attribute")
+        if item.get("tabindex") not in (None, ""):
+            score = max(score, 76.0)
+            reasons.append("keyboard_focusable")
+        if _tokens(str(item.get("class_name") or "")) & _ACTION_CLASS_TOKENS:
+            score = max(score, 82.0)
+            reasons.append("action_class_token")
+        if str(item.get("cursor") or "").lower() == "pointer":
+            score = max(score, 68.0)
+            reasons.append("pointer_cursor")
+
+        # Target selection and locator quality are one decision.  Event-time
+        # counts are captured before a click can navigate or mutate the DOM.
+        counts = [
+            item.get("stable_css_count"),
+            item.get("href_count"),
+            item.get("css_count"),
+        ]
+        known_counts = [int(value) for value in counts if value is not None]
+        if 1 in known_counts:
+            score += 22.0
+            reasons.append("event_time_unique_locator")
+        elif known_counts and min(known_counts) > 1:
+            score -= 18.0
+            reasons.append("event_time_ambiguous_locator")
+
+        if tag in _GRAPHIC_LEAF_TAGS:
+            score -= 28.0
+            reasons.append("graphic_leaf")
+        elif (
+            str(item.get("cursor") or "").lower() == "pointer"
+            and 20.0 <= float(rect.get("width") or 0.0) <= 96.0
+            and 20.0 <= float(rect.get("height") or 0.0) <= 96.0
+        ):
+            score += 14.0
+            reasons.append("compact_clickable_wrapper")
+
+        score -= depth * 3.5
+        if not _contains(rect, x, y):
+            score -= 100.0
+            reasons.append("outside_pointer")
+        if area and area > max(hit_area * 25.0, 200_000.0):
+            score -= 70.0
+            reasons.append("oversized_ancestor")
+        elif area and area > max(hit_area * 8.0, 60_000.0):
+            score -= 25.0
+            reasons.append("large_ancestor")
+
+        scored.append({"depth": depth, "score": round(score, 3), "reasons": reasons, "target": item})
+
+    winner = max(scored, key=lambda row: (row["score"], -row["depth"]))
+    return dict(winner["target"]), scored