Jev directory
CommunityJev Tools & CLIs
DeepSeek Harness (DSH) for VS Code
HarcoChen's VS Code client for DeepSeek Harness with native diffs, approval cards, persistent sessions, and a bundled Laya/Jev integration for loop guarding, done-gating, tool pruning, and typed decision tools.
- Reading time
- 3 min
- Published by
- Community
- Author
- HarcoChen
- Last verified
- Oct 2026
- Platforms
- CLI
Highlights
- Publisher HarcoChen, 688 installs; an independent community project needing VS Code 1.106.0+ and a configured DSH provider.
- Targets dsh 0.2.0-rc.2, and any Runtime at or above 0.1.5-rc.1 still connects.
- Bundles the dsh-jev-integration Runtime plugin, so Jev or the wire-compatible Apache-2.0 Laya work with no extra install.
- Seven off-by-default features include loop guard, result shaper, done gate, tool pruner, skill router, decision tools, and a safety guard.
- Decision tools expose jev_ask, jev_rank, and jev_check; the Jev key is encrypted in VS Code SecretStorage.
Watch out
The page names no licence, the default Runtime contract targets a 0.2.0 release candidate, and everything Jev-related is off by default — enabled features send the samples they need to the configured endpoint. Laya mode requires an HTTPS baseUrl and falls back to the TypeSafe default for anything else.
Questions about this entry
Short answers drawn from the linked project or page.
An integration that brings DeepSeek Harness into VS Code: work with your code, review native side-by-side diffs, respond to tool approvals, resume persistent sessions, and follow tasks with built-in Trace and token usage insights.
Install the extension and the official DeepSeek Desktop app, which registers the dsh command. Open and trust your project folder, run DSH: Open Chat, set up a provider with DSH: Configure API Key for DeepSeek or the dsh Web UI for others, and give it a task.
The IDE-neutral dsh-jev-integration Runtime plugin ships inside the extension and mounts into every Runtime it starts. It adds System One decisions from TypeSafe Jev or the wire-compatible open-source Laya: loop guard, large-output shaping, done gate, tool pruning, skill routing, and decision tools.
Enable dsh.jev.enabled plus the individual features you want (loop guard, result shaper, done gate, tool pruner, skill router, decision tools, deterministic safety guard), run DSH: Configure Jev API Key, and restart the Runtime when prompted. Everything is off by default.
Yes. Point dsh.jev.baseUrl at an HTTPS endpoint that serves the Laya System One API and set dsh.jev.model to the name that server expects. If your server ignores the key, any placeholder works; the extension accepts only https:// endpoints and falls back to the TypeSafe default otherwise.
Approval cards show the actual command line, working directory, and target files, with a native diff of the proposed change for supported file-writing tools. A write whose target still has unsaved editor changes is not released: approval is refused until you save or revert.
Sessions are persistent: DSH: Manage Sessions pins sessions and restores archived ones, DSH: Archive Session stops a running task if you confirm, and DSH: Manage DeepSeek Account signs in through the browser and shows profile and balance. Runtime workspace files open as read-only previews up to 1 MiB.
Reactions & coverage
Posts, threads, and videos about this entry from around the web.
X: Decision outputs in Grep
Hacker News: jevmem keeps Claude Code project memory by asking Jev which turns are worth saving.
avinashjetwani61 pointsJevmem – automatic project memory for Claude Code, built on JevRead the thread on Hacker NewsX: A usage router for Grok Bot
X: The compaction plugin, in Chinese
More Jev resources like this
A free, MIT-licensed AI coding agent that reads code, edits files, runs commands and reasons through bugs across a terminal REPL, a full-screen TUI and a browser UI, with visible permission boundaries and durable project memory.
Jev Tools & CLIs#community#catalog-import#logicrw
Community
wrongstack/wrongstackTypeScript
wrongstack/wrongstackTypeScriptA Jev-guided context compaction library for coding agents: instead of summarizing old context, Jev decides which tool calls and results still matter while user and assistant text is kept verbatim.
Jev Tools & CLIs#community#typescript#compaction
Jev-backed auto mode for the Pi coding agent: semantically approves bash, write, and edit tool calls, and fails closed whenever a decision cannot be made.
Jev Tools & CLIs#community#coding-agent#permissions
Community
jomatsu/pi-jev-auto-modeTypeScript
jomatsu/pi-jev-auto-modeTypeScriptA safety gate for AI coding agents that checks every shell command, file write, and file read before it runs and returns ALLOW, ASK, or DENY: most calls are decided locally in under a millisecond, while ambiguous or destructive ones go to TypeSafe's System One model.
Jev Tools & CLIs#community#catalog-import#logicrw
Community
clemensschartmueller/jev-guardGo
clemensschartmueller/jev-guardGoAn MCP server for Antigravity IDE, Cursor, and Claude Code that uses Jev (jev-latest) to locate code semantically and audit git diffs, replacing broad grep sweeps of entire files.
Jev Tools & CLIs#community#python#mcp
Language support for SysOneScript (.sos) that wires VS Code to the native language server and runtime: a DAP debugger, stream inspection, a project-control dashboard, and Jev tokens stored in SecretStorage.
Jev Tools & CLIs#community#vscode#language-server
Community
From the Jev guides
Original write-ups on what this entry is for.
From the Jev AI model community
Posts from builders shipping with Jev right now.