# Harness Related Articles

HTX News Center provides the latest articles and in-depth analysis on "Harness", covering market trends, project updates, tech developments, and regulatory policies in the crypto industry.

Five Core Forms of AI Agent in YC's Eyes

The article outlines five core architectural patterns for effective AI Agents, emerging from tools like Codex and Claude, that move beyond simple prompts towards reusable, process-based capabilities. 1. **Skills**: Reusable, parameterized workflows that function like method calls, allowing a single process (e.g., "/investigate") to handle various tasks based on input parameters. 2. **Thin Harness**: A lightweight execution framework (~200 lines) that manages the AI model's "hands and feet"—handling loops, file I/O, and context—without becoming bloated. 3. **Resolvers**: Routing tables that map tasks to specific Skills, preventing "context corruption" when managing dozens of Skills and ensuring outputs go to the correct locations. 4. **Latent vs. Deterministic Layer**: A critical separation where LLMs handle judgment, synthesis, and pattern recognition, while deterministic code handles tasks requiring precision, consistency, and low cost (like calculations). 5. **Memory**: A persistent, accumulating knowledge base (e.g., a markdown folder) with a "current trusted conclusion" section and an append-only timeline, enabling the system to learn and retain context over time. Together, these patterns create a "process power"—a durable competitive advantage. Unlike one-off prompt-based applications whose value quickly commoditizes, a well-designed AI Agent system encodes experience into reusable, parameterized workflows, offloads stable rules to code, and continuously learns through memory. This creates a structured, hard-to-replicate capability that can provide sustained value for individuals or businesses, such as an accountant automating client reviews while preserving privacy and accumulating expertise.

marsbit27m ago

Five Core Forms of AI Agent in YC's Eyes

marsbit27m ago

Harness Arbitrage Era: Rescuing DeFi from the SaaS Edge

The article "Harness Arbitrage Era: Rescuing DeFi from the SaaS Edge" explores the convergence of AI and decentralized finance (DeFi), arguing that AI-driven organizational models and token economies are surpassing DeFi and SaaS paradigms in efficiency. It traces how AI, particularly through agents and harness engineering, is quantizing human labor and organizational structures into scalable, automated systems ("Skill" extraction). Token consumption has exploded, driving data and content production costs toward zero, while SaaS models crumble as AI sells "work capability" rather than mere information. DeFi, though pioneering, has stagnated into a SaaS-like state—charging for transactions but failing to innovate fundamentally. The piece proposes that AI can reboot DeFi by enhancing security (e.g., via Mythos), optimizing capital efficiency, and redesigning token economics around verifiable, real-time returns rather than speculative value. Ultimately, AI agents learning from human behavior could autonomously manage DeFi protocols, making crypto tokens certificates of capital回报率 (return on capital). While AI reduces the value of data and repetitive labor, it opens new economic opportunities for individuals, reshaping finance through scalable, agent-driven automation.

marsbit04/19 01:16

Harness Arbitrage Era: Rescuing DeFi from the SaaS Edge

marsbit04/19 01:16

Agents Have Entered the Harness-Driven Era

The article discusses the significance of the leaked Claude Code from Anthropic, highlighting its revelation of advanced Agent engineering practices centered on "Harness" design. Rather than relying solely on model capabilities, modern AI systems now depend on a structured engineering framework—the Harness—to maximize performance. This framework includes six core components: multi-layered System Prompts, Tool Schema, Tool Call Loop (with Plan and Execute modes), Context Manager, Sub-Agent coordination, and Verification Hooks. The Harness enables tighter integration between training and inference, supports long-chain tool execution, and improves reliability through objective verification. It also drives six key training directions: behavior alignment via System Prompt, end-to-end tool-use training, integrated plan-execute training, memory compression, sub-agent orchestration, and multi-objective reinforcement learning. The shift to Harness-driven development reduces the emphasis on pure prompt engineering, favoring instead multidisciplinary talent with skills in AI, backend engineering, and infrastructure. The market is evolving toward more secure, private, and vertically integrated Agent deployments, with "model shell" companies needing either strong infrastructure or deep domain expertise to compete. Claude Code’s leak underscores that future AI advancements will be shaped by engineering architecture as much as by algorithmic innovation.

marsbit04/15 10:11

Agents Have Entered the Harness-Driven Era

marsbit04/15 10:11

Thin Harness, Fat Skills: The True Source of 100x AI Productivity

The article "Thin Harness, Fat Skills: The True Source of 100x AI Productivity" argues that the key to massive productivity gains in AI is not more advanced models, but a superior system architecture. This framework, "fat skills + thin harness," decouples intelligence from execution. Core components are defined: 1. **Skill Files:** Reusable markdown documents that teach a model *how* to perform a process, acting like parameterized function calls. 2. **Harness:** A thin runtime layer that manages the model's execution loop, context, and security, staying minimal and fast. 3. **Resolver:** A context router that loads the correct documentation or skill at the right time, preventing context window pollution. 4. **Latent vs. Deterministic:** A strict separation between tasks requiring AI judgment (latent space) and those needing predictable, repeatable results (deterministic). 5. **Diarization:** The critical process where the model reads all materials on a topic and synthesizes a structured, one-page summary, capturing nuanced intelligence. The architecture prioritizes pushing intelligence into reusable skills and execution into deterministic tools, with a thin harness in between. This allows the system to learn and improve over time, as demonstrated by a YC system that matches startup founders. Skills like `/enrich-founder` and `/match` perform complex analysis and matching that pure embedding searches cannot. A learning loop allows skills to rewrite themselves based on feedback, creating a compound improvement effect without code changes. The conclusion is that 10x to 1000x efficiency gains come from this disciplined system design, not just smarter models. Skills represent permanent upgrades that automatically improve with each new model release.

marsbit04/13 04:19

Thin Harness, Fat Skills: The True Source of 100x AI Productivity

marsbit04/13 04:19

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