ATLAS-RTC: Closing the Loop on LLM Agent Output with Token-Level Runtime Control
We present ATLAS-RTC, a runtime control system for autoregressive language models that enforces structured output during decoding. ATLAS-RTC monitors generation at each step, detects drift from output contracts using lightweight signals, and applies targeted interventions such as biasing, masking, and rollback. Unlike post-hoc validation or static constrained decoding, it operates in a closed loop, enabling correction before errors materialize. Across structured generation and tool-calling tasks, ATLAS-RTC improves first-attempt success rates by 20 to 37.8 percentage points, with up to 88% latency reduction in failure-dominated settings. Results show that many failures arise from decoding...
| Authors | Christopher Cruz |
|---|---|
| Primary category | cs.LG |
| Published | 29 March 2026 |
| Last updated at source | 6 April 2026 |
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