Model Introduction
DeepSeek V4.1 Flash API: Preview Access and Harness Setup
What the reported DeepSeek V4.1 Flash preview model ID means, how to configure an authorized test in Harness, and which API and multimodal details remain unverified.
ReadTag: #deepseek-harness
Developer Tools
Your Agent Is Sandboxed. Why Can It Still Reach the Host?
A workspace-write policy can still leave a hidden route through host PIDs and /proc. See the fixed versions and a safe PID-namespace check.
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Developer Tools
DeepSeek Harness Multimodal Update: From rc.8 to v0.1.1-rc.2
DeepSeek Harness added native images, a vision model, Files API reuse, subagent bundles, and Windows PTY improvements from rc.8 through v0.1.1-rc.2.
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Developer Tools
DSH Agent Loop & Tool Pipeline Internals: How Every Request Flows
Inside DeepSeek Harness's agent loop: steps, turns, three waterfalls, tool concurrency, compaction, and the session log invariant explained with code.
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Developer Tools
DSH Capability Seams: The Design Pattern Behind Everything-Is-a-Plugin
How DeepSeek Harness makes everything-is-a-plugin actually work. Deep dive into Capability Seams: the three-role pattern (Definition, Provider, Consumer) that lets you swap any component.
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Developer Tools
DSH Subagents & Multi-Agent Orchestration: From Spawn to Workflow
How DeepSeek Harness orchestrates multiple agents: named providers, continuable children, workflow scripts, the Ralph loop, and background jobs explained.
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Model Comparison
DeepSeek Harness vs Claude Managed Agents (2026)
DeepSeek Harness vs Claude Managed Agents compared. Open-source composable plugins vs managed hosted infrastructure. Architecture, trade-offs, and when to pick each.
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Model Comparison
DeepSeek Harness vs Hermes Agent (2026): OpenClaw Comparison
DeepSeek Harness vs Hermes Agent, with OpenClaw compared: architecture, setup, extensibility, channels, learning loops, and which open-source AI agent fits each use case in 2026.
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Model Comparison
SandBase MA vs Claude MA vs DeepSeek Harness (2026)
Three-way comparison of SandBase Managed Agents, Claude Managed Agents, and DeepSeek Harness covering architecture, pricing, and data ownership.
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