AIDevToolsObservabilityAgent

AgentLoop Guard

Lightweight guard that detects and breaks semantic loops in agent traces

Problem
Teams building autonomous agents often see them ping-pong between two tool calls or repeat the same reasoning, burning tokens and stalling. Existing observability tools show traces but don't judge whether a run is going in circles, so humans only notice after the fact.
Solution
Ingest agent traces (OpenTelemetry or custom logs), embed each step and compute trajectory similarity, then fire an alert or invoke an abort hook when a high-similarity loop is detected. Deploy as a sidecar or SDK middleware without touching the agent's core logic.
Users
AI engineers building autonomous agents, agent platform teams, developers running long-horizon workflows
MVP
Parse standard trace formats (OTel/JSON); lightweight embedding of each step with a sliding window; similarity threshold triggers a webhook alert; example abort callback; local dashboard showing the looping segment
Revenue
Open-source core plus hosted detection service billed per event; or subscription per agent instance
Why now
Long-horizon agents are becoming common and loop-driven cost waste is getting attention; semantic loop detection is not covered by mainstream observability vendors yet

Source discussions · 1

  1. Hacker NewsShow HN: Semloop – Semantic loop detection for AI agent traces1↑ 0
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