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The Node port (@kuns/claude-mailbox) is the recommended runtime and covers all supported features. Maintaining a wire-compatible .NET twin adds dual-impl tax with no remaining users, so remove src/, tests/, solution + MSBuild files, NuGet config, and both .NET CI workflows. Docs updated: README "Path C" build-from-source section dropped, architecture diagram + Development section simplified, and node/README no longer subtitles itself as a port of the .NET daemon. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2.1 KiB
2.1 KiB
@kuns/claude-mailbox
Standalone MCP mail server that lets parallel Claude sessions coordinate with each other.
Install
One-time per machine:
npm config set @kuns:registry=https://git.kuns.dev/api/packages/releases/npm/
npm install -g @kuns/claude-mailbox
Then:
claude-mailbox install-autostart # registers per-OS autostart, no admin needed by default
See the repository README for the full architecture, MCP tool reference, and .mcp.json snippet.
Claude Code hook (auto-check inbox)
Register a UserPromptSubmit hook so Claude pulls pending mailbox messages before every prompt:
claude-mailbox install-hook --name alice # patches ~/.claude/settings.json
claude-mailbox install-hook --name alice --project # patches <cwd>/.claude/settings.json
claude-mailbox uninstall-hook # remove again
The hook is idempotent (running install-hook twice does nothing the second time) and only touches the UserPromptSubmit block — other hooks and settings are preserved.
Under the hood the hook runs claude-mailbox check --name <mailbox> --hook, which:
- prints unread messages in a Claude-friendly format,
- silently exits 0 if the inbox is empty or the daemon is unreachable (no context noise),
- marks the messages delivered so they aren't injected again next prompt.
Cost: one local HTTP round-trip plus Node coldstart per prompt (~100ms on Windows).
Troubleshooting
npm installreturns401 Unauthorized- The Gitea registry usually serves the
releasesscope publicly, but if your instance requires auth you'll need a read token:npm config set //git.kuns.dev/api/packages/releases/npm/:_authToken=<token> Cannot find module 'node:sqlite'or similar- claude-mailbox uses Node's built-in
node:sqlite, stable since Node 24. On Node 22.5–23.x it works only with--experimental-sqlite. Upgrade to Node 24 LTS or newer:nvm install 24 && nvm use 24(orwinget install OpenJS.NodeJS.LTSon Windows).