中文 · EX-CT 正在构建 EXFA（精密装配助理 / Exactitude Fitting Assistant）：一个现代化、对 AI 友好的 EVE Online 配船工具。目标是完整复现 Pyfa 的计算结果与功能，拆分为 无状态 Rust 计算引擎 + 独立的 SDE 数据管线
- CLI / WASM 接口 + MCP 服务器 + 网页 UI。同一个 JSON 请求（
FitRequest）总是得到逐字节相同的结果 （FitStats），既能嵌入网页，也能被 AI 代理直接调用。
English · EX-CT builds EXFA (Exactitude Fitting Assistant), a modern, AI-friendly fitting toolkit for
EVE Online. It reproduces Pyfa's numbers and feature set, split into a stateless Rust engine, a separate
SDE data pipeline, CLI / WASM interfaces, an MCP server and a web UI. The same JSON request
(FitRequest) always gives a byte-identical result (FitStats), so the engine can run in a browser tab or
be called directly by AI agents.
▶ Try it / 在线试用: https://ex-ct.github.io/EXFA-App/ (runs fully in the browser · 完全在浏览器中计算)
| Repo | Role (English) | 作用（中文） | License |
|---|---|---|---|
| EXFA-Engine | The fitting engine in Rust: stateless CLI, JSONL RPC (calc, batch, graphs, search), browser WASM build | 配船引擎（Rust）：无状态 CLI、JSONL RPC、浏览器 WASM | LGPL-3.0-or-later |
| EXFA-Data | CCP SDE → compact versioned engine dataset; daily jita4 market prices, published as releases | CCP 官方 SDE 转引擎数据包；每日吉他市场价格 | MIT (+ CCP data licence) |
| EXFA-Bench | Correctness/performance suites: 326+ cases, Pyfa black-box oracle, scorers, baselines | 统一评测：数百用例、Pyfa 对照、基线门禁 | MIT (oracle: GPL-3.0) |
| EXFA-Docs | Design docs: Pyfa analysis, feature-parity inventory, API schema, migration plan, licensing | 设计文档、分析、接口规范、迁移方案 | CC-BY-4.0 (docs), MIT (schemas) |
| EXFA-App | Monorepo: apps/web fitting UI (React, engine runs as WASM in-page, zh/en) + packages/mcp MCP server for AI agents |
应用仓：网页配船界面 + MCP 服务器 | MIT |
| history | Consolidated archive of the pre-migration eve-* repositories (full git history + release assets) |
迁移前旧仓库的归拢存档（完整 git 历史 + release 资产） | mixed |
- Contract / 契约: the engine implements a stateless JSON contract (CONTRACT.md, docs/05-api-schema.md) and loads the same SDE dataset. 引擎实现同一份无状态 JSON 契约，加载同一个 SDE 数据包。
- Oracle / 对照: expected values come from Pyfa's eos engine run headless as a black box
(oracle/); outputs are compared, no Pyfa code is copied.
Known Pyfa-vs-SDE disagreements are listed in
expected/known_divergences.json. 期望值由无界面运行的 Pyfa 作为“黑盒”产生，只比较数值，不复制代码。 - Corpus / 用例: hundreds of fits (community regression fits, hand-written edge cases, and variations:
fleet boosts, projected effects, wormhole/abyssal/incursion environments, implants, boosters, mutated
modules, RAH…). Tolerance
|got − want| ≤ max(1e-3, 1e-4·|want|). - Pyfa parity / 对齐清单: full feature coverage is tracked in docs/19-pyfa-feature-inventory and audited in docs/25-pyfa-parity-audit.
- History / 沿革: the engine won a 10-variant architecture bake-off; the lab and all pre-migration repos are preserved in EX-CT/history (evaluation: docs/09).
Policy: EXFA-Docs/LICENSING.md.
- Engine (EXFA-Engine): LGPL-3.0-or-later, so MIT or proprietary front-ends can link it.
- Pipeline, MCP server, web UI, bench runner, schemas: MIT. Docs: CC-BY-4.0.
- Pyfa's GPL code is never translated into the LGPL/MIT repos; Pyfa is used only as a black-box test oracle. Pyfa-derived preset tables are shipped only as separately labelled LGPL/GPL files.
- EVE Online data © CCP hf., used under CCP's third-party developer licence; generated datasets ship with
LICENSE.EVEas release assets.
中文：引擎采用 LGPL-3.0+，其余仓库 MIT，文档 CC-BY-4.0；不翻译 Pyfa 的 GPL 代码，只把 Pyfa 当黑盒对照； EVE 数据版权属于 CCP，仅作为 Release 资源分发。
Vexor (static bilingual fit viewer / 配置展示网站) · Shuttle (system accessibility analysis / 星系通达度分析)
EVE Online and all related trademarks are the property of CCP hf. EX-CT is not affiliated with CCP.