Architecture Node
Active Failing Edge
Active Execution Trace
🔴 TRACE SIMULATOR:
Tool Loop Invocation
FAIL AT STEP 4
Root Cause Isolation
High (Cost & Infinite Loop)
Infinite Tool Invocation Oscillation
Model generates repeated identical tool calls with minor parameter drift due to lack of deduplication or feedback state normalization in the harness.
Trace Log Telemetry
[10:14:02.102] [Harness] Prompt assembled with tool spec (3 tools)
[10:14:02.845] [Model] Response: call execute_search(query="rate limit")
[10:14:03.110] [Tools] Executed tool 'execute_search' -> status: 429 Too Many Requests
[10:14:03.200] [Harness] Raw error returned to Model context
[10:14:03.910] [Model] Response: call execute_search(query="rate limit ") <-- UNCHANGED REPEAT
[10:14:04.150] [CRITICAL] Edge [Harness <-> Tools] loop limit exceeded (Threshold: 3 repeats)
Recommended Remediation
Implement a harness-level deterministic deduplication cache, strict loop budget window, and explicit negative feedback context injection.
Architectural Mitigation Spec
Targeted code patch for Infinite Tool Invocation Oscillation:
class HarnessToolDeduplicator:
def __init__(self, max_budget=3):
self.call_history = []
self.max_budget = max_budget
def validate_tool_call(self, tool_name, params):
signature = f"{tool_name}:{hash(frozenset(params.items()))}"
if self.call_history.count(signature) >= self.max_budget:
raise HarnessLoopException(
f"Loop detected on {tool_name}. Injecting synthetic error feedback."
)
self.call_history.append(signature)
return True
Mitigation Status Verification
Status: Unremediated
SYSTEM AUDIT STATE BINDING:
Failing Edge: Harness <-> Tools
Impact: High (Cost & Infinite Loop)
Status: Unremediated
Root Cause: Harness Protocol Defect (Missing Call Budget & Context Normalization)