# Senrelay · 续境 (ContextCore)

> Senrelay (open-source repository `ContextCore`) is a free, MIT-licensed, local-first macOS workbench and loopback service (`127.0.0.1:8420`) for cross-agent conversation relay (`/contextcore`), companion source-linked auto-memory, and unified multi-host AI coding assistant configuration management.

Senrelay (续境) runs natively on macOS 14.0+ (Sonoma or later, Apple Silicon `arm64`) as `Senrelay.app` or from source via Python 3.11+ and Node 22/24 LTS. Pricing: **$0 (free and open source under the MIT License)**.

> **Package Disambiguation**: Install the macOS app via `brew install --cask qingsongcui/tap/senrelay` or GitHub Releases (`Senrelay-macOS.zip`). Do **NOT** run `pip install contextcore`—the PyPI package of that name is an unrelated third-party project.

## Core Capabilities

- **Cross-Agent Conversation Relay (`/contextcore`)**: Type `/contextcore` (or say "接着做" / "接力" / "continue" / "relay") inside any of the 6 core context hosts—Claude Code, Codex, Cursor, Antigravity, Oh My Pi (OMP), or OpenCode—to list numbered recent cross-host conversation candidates with source agent, project, title, and summary. Selecting only a candidate number loads context with `must_not_execute=true` so the new agent briefs status and awaits instructions; attaching a concrete task continues execution immediately.
- **Companion Source-Linked Auto-Memory**: Companion MCP tools and Skills capture structured memories across six categories (Preferences, Background, Constraints, Tasks, Lessons, References) with exact conversation-turn or document provenance and a brief `💡` receipt, plus core-rule pinning (`📌`), conflict inbox review, version rollback, `AGENTS.md` handbook preview, and multi-format document imports (Markdown, TXT, JSON, PDF, DOCX, DOC).
- **Unified Multi-Host Configuration Management**: Switch across 6 core context hosts and 9 extended configuration hosts from a permanent top bar, run One-Click Connect, apply provider presets, test endpoint latency, isolate API keys in macOS Keychain, and sync MCP servers, Skills, and system prompts with automatic rollback snapshots and external-edit Diff protection.

## System Requirements & Privacy Boundaries

- **Platform & Pricing**: macOS 14.0+ on Apple Silicon (`arm64`) · Public Beta `v1.0.0-beta.1` · Free (`$0`, MIT License).
- **Quick Install**: `brew install --cask qingsongcui/tap/senrelay` (first launch for ad-hoc signed bundle: `xattr -cr /Applications/Senrelay.app`).
- **Privacy & Storage**: Loopback-only HTTP/MCP service (`127.0.0.1:8420`, dev `127.0.0.1:18420`), local SQLite + FTS5 full-text search (`~/Library/Application Support/ContextCore`, directory mode `0700`, DB mode `0600`), online SQLite backups (`contextcore backup`), and macOS Keychain secret isolation. No mandatory cloud account or background cloud upload.

## Resources

- [English Homepage](https://senrelay.com/en/): Static English product overview, host capability matrix, and FAQ.
- [Chinese Homepage (中文首页)](https://senrelay.com/): Primary Simplified Chinese product overview and interactive walkthrough.
- [English Setup & Workflow Guide](https://senrelay.com/en/guide.html): Homebrew Cask install, first launch (`xattr -cr`), source build, and daily workflows.
- [Chinese Setup & Workflow Guide (中文运行指南)](https://senrelay.com/guide.html): 本地安装、首次启动、源码运行与三大工作流指南。
- [Extended LLM Reference](https://senrelay.com/llms-full.txt): Complete 6-point relay specification, 6+9 host support matrix, CLI commands, and bilingual FAQ.
- [GitHub Repository](https://github.com/qingsongcui/ContextCore): Source code, architecture contracts, and automated verification gates.
- [Release v1.0.0-beta.1](https://github.com/qingsongcui/ContextCore/releases/tag/v1.0.0-beta.1): Prebuilt `Senrelay-macOS.zip` and `SHA256SUMS`.
- [License](https://github.com/qingsongcui/ContextCore/blob/main/LICENSE): MIT License.