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  1. 0.
    micropython-wasm 0.1a1 (simonwillison.net)
    0 points 1 sources 1 minutes ago cluster

    Simon Willison released micropython-wasm 0.1a1, a Python library for running a MicroPython sandbox using WebAssembly. This release fixes some limitations that emerged while building datasette-agent-micropython.

    pythonsandboxingwebassembly
  2. 0.
    datasette-agent-micropython 0.1a0 (simonwillison.net)
    0 points 2 sources 1 minutes ago cluster

    Simon Willison released datasette-agent-micropython 0.1a0, a MicroPython tool for Datasette Agent that runs in a WASM sandbox. Initial tests show promising results, with GPT-5.5 failing to break out of the sandbox.

    agentsdatasettesandboxingwebassembly
  3. 0.
    How we contain Claude across products (simonwillison.net)
    0 points 1 sources 1 minutes ago cluster

    Anthropic published a detailed overview of their sandbox techniques for Claude.ai, Claude Code, and Cowork, using process sandboxes, VMs, filesystem boundaries, and egress controls to constrain agent actions.

    ai-securitymodelssandboxing