fix(perception): structural Resource-ID bypass gate + dead code purge in ActionMemory

P0-1: Toggle intents (follow/like/save) resolved via Resource-ID fast-path
now skip VLM verification entirely. Eliminates the #1 session failure:
VLM hallucinating Follow→Like, causing zero follows per session.

P0-2: Purge 52 lines of unreachable dead code after unconditional return
at line 290. Non-toggle structural delta verification now properly reachable.
Remove 4 DEBUG-prefixed logger.info pollution statements.

TDD: 7 new tests covering bypass gate, negative guard, non-toggle delta,
and debug log pollution detection.
This commit is contained in:
2026-05-04 14:35:19 +02:00
parent f384fbb749
commit d81a5d4e81
2 changed files with 254 additions and 53 deletions

View File

@@ -196,6 +196,23 @@ class ActionMemory:
state_toggles = ["like", "save", "follow", "heart"]
is_toggle = any(t in intent_lower for t in state_toggles)
# ── P0-1: Structural Resource-ID Bypass Gate ──
# If the clicked node was resolved via a structural Resource-ID that
# directly matches the toggle intent, VLM verification is SKIPPED.
# This eliminates the #1 session failure: VLM hallucinating Follow→Like.
if is_toggle and self._last_click_context:
clicked_rid = (self._last_click_context.get("node_dict", {}).get("resource_id", "") or "").lower()
if clicked_rid:
for intent_keyword, required_markers in TOGGLE_INTENT_MARKERS.items():
if intent_keyword in intent_lower:
if any(marker in clicked_rid for marker in required_markers):
logger.info(
f"⚡ [ActionMemory] Structural Resource-ID bypass: '{intent}' matched "
f"'{clicked_rid}'. Skipping VLM verification — O(1) trust."
)
return True
break # Only check the first matching intent keyword
# ── VLM Verification Fallback ──
# If we are highly confident (e.g. pulled from Qdrant memory), bypass heavy VLM
@@ -270,10 +287,8 @@ class ActionMemory:
)
return False
# Fallback to structural delta
logger.info(f"DEBUG: len(pre_click_xml)={len(pre_click_xml)} len(post_click_xml)={len(post_click_xml)}")
# ── Structural Delta Verification ──
diff = abs(len(pre_click_xml) - len(post_click_xml))
logger.info(f"DEBUG: diff={diff}")
if is_toggle:
if diff > 1000:
@@ -288,58 +303,18 @@ class ActionMemory:
f"⚠️ [ActionMemory] Zero structural shift (diff={diff}) for state-toggle '{intent}'. Verification FAIL."
)
return False
# If the intent is an abstract goal (like "find customers"), diff > 50 is NOT enough.
# We must force visual VLM confirmation because clicking the wrong thing (like "Create highlight")
# also produces a large diff but achieves the wrong goal.
if diff > 50:
# Is it a standard structural transition?
from GramAddict.core.screen_topology import ScreenTopology
# We don't have screen type here, so we just check if it's in the HD Map keys
logger.info(f"DEBUG: intent is '{intent}'")
logger.info(
f"DEBUG: TRANSITIONS keys are: {[list(t.keys()) for t in ScreenTopology.TRANSITIONS.values()]}"
)
is_standard = any(intent in transitions for transitions in ScreenTopology.TRANSITIONS.values())
logger.info(f"DEBUG: is_standard={is_standard}")
if is_standard:
logger.debug(
f"🧠 [ActionMemory] Structural change detected for known navigation '{intent}'. Verification PASS."
)
return True
else:
logger.info(
f"👁️ [ActionMemory] Abstract intent '{intent}' caused UI change. Forcing VLM visual verification..."
)
# For abstract intents, we must visually verify if it actually helped!
# If device is available, we use VLM. If not, we fail safe.
if device:
from GramAddict.core.perception.semantic_evaluator import SemanticEvaluator
evaluator = SemanticEvaluator()
prompt = f"The user just attempted to perform the action: '{intent}'. Does the current screen match the expected outcome? Answer ONLY with the word YES or NO."
try:
response = evaluator._query_vlm(prompt, device.get_screenshot_b64())
decision = _parse_yes_no(response) if response else None
if decision is True:
return True
else:
logger.warning(
f"⚠️ [ActionMemory] VLM rejected success for abstract intent '{intent}'. Response: '{response}'"
)
return False
except Exception as e:
logger.error(f"VLM visual verification failed: {e}")
logger.warning(f"⚠️ [ActionMemory] Cannot visually verify abstract intent '{intent}'. Failing safe.")
return False
# If diff <= 50 for non-toggle
logger.warning(
f"⚠️ [ActionMemory] Insufficient structural change (diff={diff}) for non-toggle '{intent}'. Verification FAIL."
# ── Non-Toggle Structural Delta ──
if diff > 50:
logger.debug(
f"🧠 [ActionMemory] Structural change detected ({diff} chars) for '{intent}'. Verification PASS."
)
return False
return True
logger.warning(
f"⚠️ [ActionMemory] Insufficient structural change (diff={diff}) for non-toggle '{intent}'. Verification FAIL."
)
return False
def _intent_matches_node(intent: str, semantic_string: str) -> bool:

View File

@@ -0,0 +1,226 @@
"""
P0-1: Structural Bypass Gate — VLM must NEVER be called for Resource-ID matched toggles.
P0-2: Dead Code Purge — Non-toggle structural delta must be functional (not dead code).
TDD RED: These tests encode the exact failures found in session 93c880d3.
The VLM hallucinates Follow→Like, causing zero follows in the entire session.
The fix: if the clicked element's resource_id structurally matches the intent,
skip VLM verification entirely and return True.
"""
from GramAddict.core.perception.action_memory import ActionMemory
class _VLMTrap:
"""Device that tracks if VLM was ever attempted. Proves structural bypass.
We can't rely on raising an exception because the VLM call site catches
all exceptions silently. Instead, we track call count and assert on it.
"""
def __init__(self):
self.vlm_call_count = 0
def get_screenshot_b64(self):
self.vlm_call_count += 1
return "fake_screenshot_b64"
# ═══════════════════════════════════════════════════════
# P0-1: Structural Bypass for Toggle Intents
# ═══════════════════════════════════════════════════════
class TestStructuralBypassFollowButton:
"""Session log: VLM classified Follow button as 'Like' 6 times → zero follows."""
def test_follow_button_with_resource_id_bypasses_vlm(self):
"""
RED: ActionMemory.verify_success invokes VLM for Follow even when
the clicked element has resource_id=profile_header_follow_button.
GREEN: When _last_click_context contains a structural resource_id match,
VLM verification must be skipped entirely.
"""
memory = ActionMemory()
trap = _VLMTrap()
memory._last_click_context = {
"intent": "tap 'Follow' button",
"node_dict": {"resource_id": "com.instagram.android:id/profile_header_follow_button"},
"semantic_string": "text: '', desc: 'Follow', id: 'com.instagram.android:id/profile_header_follow_button'",
"xml_context": "<hierarchy><node/></hierarchy>",
}
result = memory.verify_success(
intent="tap 'Follow' button",
pre_click_xml="<hierarchy><node text='Follow'/></hierarchy>",
post_click_xml="<hierarchy><node text='Following'/></hierarchy>",
device=trap,
confidence=0.0, # Low confidence would normally trigger VLM
)
assert result is True
assert (
trap.vlm_call_count == 0
), f"VLM was called {trap.vlm_call_count} time(s) despite structural Resource-ID match!"
def test_like_button_with_resource_id_bypasses_vlm(self):
"""Like button with row_feed_button_like resource_id must skip VLM."""
memory = ActionMemory()
trap = _VLMTrap()
memory._last_click_context = {
"intent": "tap like button",
"node_dict": {"resource_id": "com.instagram.android:id/row_feed_button_like"},
"semantic_string": "text: '', desc: 'Like', id: 'com.instagram.android:id/row_feed_button_like'",
"xml_context": "<hierarchy><node/></hierarchy>",
}
result = memory.verify_success(
intent="tap like button",
pre_click_xml="<hierarchy><node/></hierarchy>",
post_click_xml="<hierarchy><node text='Liked'/></hierarchy>",
device=trap,
confidence=0.0,
)
assert result is True
assert (
trap.vlm_call_count == 0
), f"VLM was called {trap.vlm_call_count} time(s) despite structural Resource-ID match!"
def test_save_button_with_resource_id_bypasses_vlm(self):
"""Save/bookmark button with resource_id must skip VLM."""
memory = ActionMemory()
trap = _VLMTrap()
memory._last_click_context = {
"intent": "tap save button",
"node_dict": {"resource_id": "com.instagram.android:id/row_feed_button_save"},
"semantic_string": "text: '', desc: 'Save', id: 'com.instagram.android:id/row_feed_button_save'",
"xml_context": "<hierarchy><node/></hierarchy>",
}
result = memory.verify_success(
intent="tap save button",
pre_click_xml="<hierarchy><node/></hierarchy>",
post_click_xml="<hierarchy><node text='Saved'/></hierarchy>",
device=trap,
confidence=0.0,
)
assert result is True
assert (
trap.vlm_call_count == 0
), f"VLM was called {trap.vlm_call_count} time(s) despite structural Resource-ID match!"
class TestStructuralBypassDoesNotApplyToGenericNodes:
"""Ensure the bypass only fires for structural Resource-ID matches, not generic nodes."""
def test_follow_without_resource_id_does_not_bypass(self):
"""
If the clicked node has no matching resource_id (e.g. VLM-resolved via text),
VLM verification must still proceed. We verify by checking that the method
falls through to the structural delta path (no VLM device needed = None).
"""
memory = ActionMemory()
memory._last_click_context = {
"intent": "tap 'Follow' button",
"node_dict": {"resource_id": ""},
"semantic_string": "text: 'Follow', desc: '', id: ''",
"xml_context": "<hierarchy><node/></hierarchy>",
}
# With device=None, VLM won't be called, but the structural delta path runs
result = memory.verify_success(
intent="tap 'Follow' button",
pre_click_xml="<hierarchy><node text='Follow'/></hierarchy>",
post_click_xml="<hierarchy><node text='Following'/></hierarchy>",
device=None,
confidence=0.0,
)
# Should fall through to structural delta logic (toggle with diff > 0)
assert result is True
# ═══════════════════════════════════════════════════════
# P0-2: Dead Code Purge — Non-toggle delta must work
# ═══════════════════════════════════════════════════════
class TestNonToggleDeltaVerification:
"""Lines 291-342 were dead code. Non-toggle structural delta must actually execute."""
def test_non_toggle_large_delta_passes(self):
"""
A non-toggle intent (e.g. 'tap explore tab') with a large structural
delta (>50 chars diff) should pass verification via the structural
delta path, not be silently dropped as dead code.
"""
memory = ActionMemory()
memory._last_click_context = {
"intent": "tap explore tab",
"node_dict": {"resource_id": "com.instagram.android:id/explore_tab"},
"semantic_string": "text: '', desc: 'Explore', id: 'explore_tab'",
"xml_context": "",
}
pre_xml = "<hierarchy><node text='Home'/></hierarchy>"
post_xml = "<hierarchy>" + "<node text='Explore Item'/>" * 20 + "</hierarchy>"
result = memory.verify_success(
intent="tap explore tab",
pre_click_xml=pre_xml,
post_click_xml=post_xml,
device=None,
confidence=1.0, # High confidence skips VLM
)
# Must not be None — the non-toggle path must be reachable
assert result is not None
def test_non_toggle_zero_delta_fails(self):
"""
A non-toggle intent with zero structural change should fail verification.
This was unreachable dead code before the fix.
"""
memory = ActionMemory()
memory._last_click_context = {
"intent": "tap explore tab",
"node_dict": {"resource_id": ""},
"semantic_string": "text: '', desc: 'Explore', id: ''",
"xml_context": "",
}
same_xml = "<hierarchy><node text='Same'/></hierarchy>"
result = memory.verify_success(
intent="tap explore tab",
pre_click_xml=same_xml,
post_click_xml=same_xml,
device=None,
confidence=1.0,
)
assert result is False
# ═══════════════════════════════════════════════════════
# P0-2: Debug Log Pollution Guard
# ═══════════════════════════════════════════════════════
class TestNoDebugLogPollution:
"""Ensure no 'DEBUG:' prefixed logger.info calls exist in production code."""
def test_action_memory_has_no_debug_info_logs(self):
import inspect
from GramAddict.core.perception import action_memory
source = inspect.getsource(action_memory)
violations = []
for i, line in enumerate(source.splitlines(), 1):
if 'logger.info(f"DEBUG:' in line or 'logger.info("DEBUG:' in line:
violations.append(f" Line {i}: {line.strip()}")
assert not violations, "Production code contains DEBUG-prefixed logger.info calls:\n" + "\n".join(violations)