Harness Router
Project / 项目 · In the catalogue / 在目录中查看
What Jev decides here · Jev 在这里做什么决定
choice: read in the code by a model, not yet by a person 由模型在代码里读到，尚无人复核
a model read the call site; no person yet 模型读过调用点，尚无人复核 · · Cited file / 引用的文件: src/harness_router/config.py
Summary · 摘要
Picks the next tool inside an existing agent loop: given a goal, observation and tool list, Jev returns a tool choice with confidence or a fallback to the host planner. Caches reusable choices, offers optional MCTS, and hooks into Codex and other harnesses or runs as an MCP server.written by a model
在现有 Agent 循环中挑选下一个工具：给定目标、当前观测和工具列表，由 Jev 返回带置信度的工具选择，或交回宿主规划器处理。会缓存可复用的选择，可选 MCTS 搜索，能挂接到 Codex 等框架，也可作为 MCP 服务器运行。模型撰写机翻
Notes · 备注
Row drafted from the discovery queue (issue #14) by an AI assistant that read the README and the cited file on 2026-10-24; a maintainer has not yet read the call site.
本条目由 AI 助手根据发现队列（issue #14）起草，于 2026-10-24 阅读了 README 和所引文件；维护者尚未亲自阅读调用点。
Launches · 发布记录
Not launched yet. 还没有发布过。 Launch it / 发布它 ↗ · How a product launches / 怎样发布一个产品
Makers · Maker
Made this? Confirm or correct its entry / 这是你做的？确认或更正条目 ↗
The same form takes the product's one line and a demo link, in its maker's own words. 同一个表单也可以补上产品的一句话和演示链接，用 Maker 自己的话。
Badge for its README · README 徽章
[](https://kydlikebtc.github.io/awesome-jev/products/harness-router.html)One line for the product's README, linked to this page. The picture says that it is listed; while it is on the launch board, that it is launching; after a week in the top three, its place. It is rebuilt with the site, so the line never needs changing. 放进产品 README 的一行，链接到本页。图片显示已收录；在发布榜上时显示正在发布；进过某周前三后显示名次。它随网站一起重建，这一行不用再改。
Also under this pattern · 同一模式的其他产品
ai-hedge-fund
Educational paper-trading and backtesting app whose investor-persona agents turn a financial snapshot into a bullish, bearish or neutral signal. With TypeSafe as provider, one Jev request per agent asks a choice of direction and a five-level score of each case's strength, mapped to the agents' JSON.
claude-code-templates: three Jev plugins
Three independently installable Claude Code plugins — guardrails, model router and skill suggestion — each with its own hooks and tests.
Cua driver: jev-use example
Computer-use action selection in Python and TypeScript: Jev picks the next browser action from an immutable candidate set, with reobserve and abstain as reserved options.
Composio TypeSafe provider
Compiles a tool catalogue into questions and reconstructs tool calls from the answers, with typed errors for abstention and confirmation-required cases.
FastMCP jev_search transform
Two-stage MCP tool search: a wide Choice coarse-ranks the whole catalogue, then a shortlist gets full descriptions plus one Noul each to decide whether it does the job at all.