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Harness RSI

3 articles · Page 1 of 1
Machine Learning Algorithms & Natural Language Processing
Machine Learning Algorithms & Natural Language Processing
Sep 24, 2026 · Artificial Intelligence

Frozen Model Weights, Evolving Agents: ModularRSI Enables Harness Self-Improvement

ModularRSI freezes base model weights and evolves the agent's harness — system mechanisms like loop control, observation handling, tool use, context management, and task completion detection — through execution experience, achieving a 4.86-point gain on Terminal-Bench 2.0 that transfers across tasks, domains, and different base models.

Agent ArchitectureAgent Self-ImprovementFrozen Model Weights
0 likes · 18 min read
Frozen Model Weights, Evolving Agents: ModularRSI Enables Harness Self-Improvement
Machine Heart
Machine Heart
Sep 24, 2026 · Artificial Intelligence

ModularRSI: Agents Self-Improve by Evolving Harness, Not Model Weights

ModularRSI demonstrates that AI agents can continuously self-improve by evolving their harness—the surrounding system mechanisms like tool use, context management, and task completion detection—while keeping the base model frozen, achieving performance gains on Terminal-Bench and SWE-Bench that transfer across domains and models.

Agent Self-ImprovementCross-Domain TransferCross-Model Transfer
0 likes · 18 min read
ModularRSI: Agents Self-Improve by Evolving Harness, Not Model Weights
Machine Heart
Machine Heart
Sep 8, 2026 · Artificial Intelligence

MetaRSI-v1: Meta-Recursive Self-Improvement Unifies Model, Data, Harness RSI

MetaRSI-v1 introduces a unified meta-recursive self-improvement architecture that applies recursive self-improvement to the improvement process itself, unifying Model-RSI, Data-RSI, and Harness-RSI via a Loop Kernel with horizontal and vertical orchestration, four coordinating agents, and five laws, demonstrating 10.9-point average gains on a 3B model and 7.3-point gains on frontier models like GPT-5.6 and Claude Opus 5.

AI architectureData-RSIHarness RSI
0 likes · 14 min read
MetaRSI-v1: Meta-Recursive Self-Improvement Unifies Model, Data, Harness RSI