mattwood.fyi

I'm Matt Wood, and this is For Your Information. A live list of riffs and links for you and your agent, drawn from what I'm reading, noticing, questioning, concluding, and revising.

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Code Execution with MCP: Building Efficient AI Agents

A running theme in Matt Wood’s FYI — 17 items spanning 2026-09-10 – 2026-09-25. This page compounds: new items on this theme are added as they’re posted. Tracked since 2026-09-25.

Tensions

SWE-2: Advanced Coding Model with Improved Cost-Capability Tradeoff vs AI Coding and the Bug Selection Problem — SWE-2's improved coding capability directly confronts the 'bug selection problem' thesis — as models get better at coding tasks, the nature of bugs AI introduces vs. solves shifts

Lines of development

Code Execution with MCP: Building Efficient AI Agents → AX: Agentic Task Execution Platform — MCP-based code execution for tool interaction represents a foundational pattern that agentic task execution platforms like AX would build upon for orchestrating complex workflows
Code Execution with MCP: Building Efficient AI Agents → Frontier engineering: Working with AI agents — MCP code execution is a concrete technical pattern within the broader frontier engineering with AI agents space, offering practitioners a specific methodology discussed abstractly there
Unreal Agent: Cost-Efficient AI Agent Harness → Build a Custom Agent Harness — Unreal Agent represents a concrete implementation of custom agent harness architecture with specific async tool call optimizations, extending the conceptual framework of building custom harnesses
Strands Harness: Frontier Performance with 28% Lower Token Cost → Build a Custom Agent Harness — Strands Harness is a concrete implementation that builds on the general concept of building custom agent harnesses, offering a specific performance-cost benchmark
Kev: Tiny Decision Models on Qwen → Introducing System One Models and Jev — Explicitly states inspiration from 'Jev-like architectures' — Jev is the decision model architecture introduced by System One, making this a direct derivative implementation

Items

Code Execution with MCP: Building Efficient AI Agents

The Model Context Protocol (MCP) enables AI agents to interact with external tools more efficiently through code execution instead of direct tool calls, reducing token consumption and context window overhead when managing hundreds or thousands of tools.

permalink · www.anthropic.com →

The Plunging Price of Thought

Explores trends in the declining costs of AI computation and cognitive processing, examining how price reductions are reshaping the economics of artificial intelligence capabilities.

permalink · epoch.ai →

Tokens Too Cheap to Meter

Explores how rapidly decreasing AI token costs across orders of magnitude will transform machine learning from a premium product to ubiquitous computing infrastructure within 1-3 years, examining improvements in GPUs, models, and the implications of supply and demand-side effects.

permalink · jyn.dev →
Unreal Agent: Cost-Efficient AI Agent Harness

Unreal Agent is an agent harness that achieves up to 40% cost savings compared to Codex by managing tool calls asynchronously, allowing agents to respond quickly to users while reducing model overhead without sacrificing performance.

permalink · unreallabs.ai →

MiMo-V2.6 | Xiaomi

MiMo-V2.6 is a Xiaomi product or software version, though specific details about its functionality are not provided in the available content.

permalink · mimo.xiaomi.com →
Strands Harness: Frontier Performance with 28% Lower Token Cost

Strands introduces their state-of-the-art agent harness that delivers frontier-level performance while reducing token costs by 28%.

permalink · strandsagents.com →
Kev: Tiny Decision Models on Qwen

A family of lightweight decision models built on Qwen3.5 that you can train and run locally, inspired by Jev-like architectures.

permalink · github.com →
Mini-AGI: Continual Learning on 8GB VRAM

A continual learning model trained from scratch on resource-constrained hardware, using an 8GB VRAM laptop with batch-1 streaming data.

permalink · github.com →
AX: Agentic Task Execution Platform

AX is a platform for declaring and running agentic tasks at scale with sandboxed execution, workspace management, network policies, and model configuration. It enables billions of concurrent agent sessions per cluster with sub-second task resumption and dense resource multiplexing.

permalink · agentexecutor.io →

SoL-Pi: Recursively Scaling Auto-Research Loops for Efficient Agent Harness

Presents SoL-Pi, a method for improving coding agents through recursive self-improvement loops that reduces token usage by 44.7-49.0% and API costs by about one third while maintaining performance on code generation tasks.

permalink · arxiv.org →

LLM Classification Is Feature Engineering

LLMs used as classifiers have significant limitations like poor calibration and difficulty incorporating structured data, but treating LLM outputs as features for traditional ML models like logistic regression can overcome these constraints.

permalink · minimallysufficient.com →

Inside the Inference Hardware Revolution Of 2026

Explores the emerging hardware technologies and innovations transforming AI inference in 2026, covering advancements in specialized processors and computing architectures designed for running inference workloads.

permalink · spectrum.ieee.org →

Build a Custom Agent Harness

Guide on creating a custom agent harness for building and deploying intelligent agents with LangChain, covering frameworks and infrastructure options.

permalink · www.langchain.com →
Kiro Crew 0.6.0 Release: Remote Crews & Agent Harnesses

Kiro Crew 0.6.0 introduces selectable agent harnesses, remote crew capabilities, and an Apps Launchpad, while requiring Python 3.12 and improving chat interface organization for long-running tasks.

permalink · kiro.dev →

SWE-2: Advanced Coding Model with Improved Cost-Capability Tradeoff

Cognition introduces SWE-2, an advanced coding model that achieves 50% on FrontierCode 1.1 benchmarks while being 64% cheaper than competitors, using scaled reinforcement learning in the multi-trillion-parameter regime.

permalink · cognition.com →
DeepSeek-V4.1-Flash: Smaller, Faster AI Model

DeepSeek announces V4.1-Flash, a compact model in their new architecture family featuring native visual understanding, designed for faster inference and higher throughput while maintaining greater capability.

permalink · x.com →
Frontier engineering: Working with AI agents

A guide for developers on how to fundamentally change their workflow to leverage AI agents for autonomous code generation and iteration, covering ten core principles and the mindset shift required to achieve significant productivity gains.

permalink · kiro.dev →