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Alto 1.0.1

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@lukebmandel-debug lukebmandel-debug released this 29 Jul 05:41

Fixes the Windows build, which in v1.0.0 did not start. This release is verified on a real Windows machine in CI: full stdio handshake, all 14 tools, and a complete timeline built inside the bundle — same verification as macOS.

Install

Download the file for your computer, then in Claude Desktop go to Settings → Extensions → Advanced settings → Install Extension… and choose it. Restart Claude Desktop and Alto appears under Extensions.

Download For
Alto-macos-arm64.mcpb macOS, Apple Silicon (M1 and later)
Alto-macos-x64.mcpb macOS, Intel
Alto-windows-x64.mcpb Windows, 64-bit

Nothing else to install — each bundle carries its own Python.

What changed

  • Windows works. Dependencies now install into the bundled interpreter's own site-packages instead of a PYTHONPATH directory. pywin32 relies on a .pth file, and .pth files only execute in real site directories — so v1.0.0 failed at import on every Windows machine.
  • Line endings are pinned LF and every file read declares UTF-8, so building from a Windows checkout produces byte-identical output.
  • CI now builds the bundle natively on Windows and macOS and runs the shipped artifact before anything is released.

Checksums

7084d925da237a54a2955e6a220374a4495be90f7d799fa5af98ee8629f64052  Alto-macos-arm64.mcpb
2b04ed6de59bf7ca690bcc662e4cd790d887940c9de28c80d9473adba0db1139  Alto-macos-x64.mcpb
a465e1158b10b96ca1a37fa9c60c33c2f211bf838c63d8624fec15e0fa186523  Alto-windows-x64.mcpb

Apache-2.0. Timelines you build with Alto are your own work and are not covered by that licence.