dsh-proof: Evidence-Driven Completion Proof and Regression Attribution Plugin
`dsh-proof` is an open-source plugin designed to convert self-reports from agents in DeepSeek Harness (DSH) into verifiable evidence chains. Through content addressing, signed checkpoints, and offline anchors, it builds a tamper-resistant chain of trust, providing evidence-driven proofs of completion, regression attribution, and real-time verification. The plugin adopts a layered architecture with a core layer decoupled from the host, and includes a DSH plugin, an MCP server, and various adapters. It is applicable to safety-critical development, stringent regression testing, and third-party auditing, shifting agent development from "blind execution" to "verifiable execution."
Read MoreY Combinator Open-Source QM: From Personal Agent to Company-Wide Multi-Person Collaboration Harness
On July 31, 2026, Y Combinator open-sourced its internally used QM (Multiplayer Agent Harness) under the MIT License. Unlike personal assistants, it is designed for entire companies: every employee and each Slack/project room has isolated memory, files, permissions and a persistent sandbox, with the same identity spanning both Slack and Web. Its core supports pluggable plugins like Pi, OpenCode, Codex and Claude Code, uses Postgres for persistence, and `qm init` enables deployment on your own Fly/AWS accounts. YC has already applied QM in accounting, legal, event and engineering work, and it hit over 500 points on Hacker News on its launch day. This article outlines its architecture, positioning differences from OpenClaw and Hermes, deployment and security strategies, and reminds readers that it is still an early-stage experiment.
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