AI agents
arxiv arXiv cs.AI · 7d ago

Sovereign Execution Broker for Certificate-Bound Agentic Control

The Sovereign Execution Broker (SEB) introduces a runtime enforcement boundary that verifies and executes certified authority in agentic systems. It validates execution contracts, checks validity periods, and ensures policy compliance before invoking infrastructure APIs, providing a short-lived, auditable, and revocable execution capability. The prototype was evaluated on AWS and Kubernetes, measuring latency, revocation propagation, and fault injection resistance.

arxiv arXiv cs.LG · 7d ago

Marginal Advantage Accumulation for Memory-Driven Agent Self-Evolution

This paper introduces Marginal Advantage Accumulation (MAA), a post-processing architecture that addresses cross-batch inconsistency in memory-driven agent self-evolution. MAA formalizes alignment and comparability as structural conditions, uses differential signals and exponential moving average to accumulate signed evidence per operation, and ensures traceability via semantic identity merging. It outperforms batch-level baselines in 14 out of 16 settings and reduces token consumption by about 75%.

arxiv arXiv cs.LG · 7d ago

Probe-and-Refine Tuning Improves Coding Agent Performance

A new method called probe-and-refine tuning uses synthetic bug-fix probes to iteratively improve repository guidance files with single-shot LLM calls, without agent loops or tool use. On SWE-bench Verified, it achieves a 33.0% mean resolve rate—14.5 percentage points higher than the initial static knowledge base—showing improved coverage rather than patch precision. The method enables agents to use larger step budgets effectively, and performance remains stable across models when diagnostic output is sufficient.

arxiv arXiv cs.LG · 7d ago

Sovereign Execution Broker for Certificate-Bound Agentic Control

The Sovereign Execution Broker (SEB) introduces a runtime enforcement boundary that verifies and executes certified authority in agentic systems. It ensures production mutation authority is isolated from non-deterministic reasoning by validating execution contracts, validity windows, and revocation states before invoking infrastructure APIs. The prototype demonstrates secure, auditable execution on AWS and Kubernetes with measurable latency and fault resilience.

arxiv arXiv cs.LG · 7d ago

Execution-State Capsules for Low-Latency On-Device AI Serving

Execution-state capsules enable graph-bound checkpointing and restoration of complete execution state, including KV, recurrent, and convolution states, for low-latency, small-batch on-device AI serving. On RTX 5090 and Jetson AGX Thor, capsule restore achieves byte-exact and token-identical correctness, with sub-millisecond GPU operations and TTFT speedups up to 27x at 16k tokens, demonstrating significant latency reduction in interactive AI workflows.

arxiv arXiv cs.AI · 7d ago

Sensorimotor World Models for Action-Aligned Perception

A new sensorimotor world model (SMWM) learns compact, action-relevant latent representations from offline trajectories. It uses inverse dynamics regularization to prevent representation collapse and align latent states with controllable environmental degrees of freedom, enabling stable training without complex regularizers or frozen components. SMWM achieves competitive planning performance in 2D and 3D control tasks.

arxiv arXiv cs.AI · 7d ago

Dual-Agent Framework for Cross-Model Verified Translation

A dual-agent framework converts natural-language experiment protocols into executable commands for robotic lab platforms. It uses a Parser Agent and a rule-based mapping engine to translate protocols, with a heterogeneous LLM Validation Agent ensuring accuracy and triggering self-correction. The framework successfully enables end-to-end autonomous execution of microplate-based experiments like the Bradford assay.

arxiv arXiv cs.AI · 7d ago

ScaffoldAgent: Utility-Guided Dynamic Outline Optimization

ScaffoldAgent introduces a utility-guided framework for dynamic outline optimization in open-ended deep research. It models outline evolution through Expansion, Contraction, and Revision operations, guided by a feedback mechanism that evaluates retrieval gain, structural coherence, and generation quality. Experiments show it improves long-form report generation and factual grounding compared to existing agents.