What it does
Deterministic rules catch the obvious dangers first. Anything subtler goes to a single batched Jev call over the recent trajectory, which beat the StepShield paper's GPT-4.1-mini judge on their held-out runs.
Agent tooling
Edward
Sits beside agents that run unattended and steps in when a session goes sideways, pausing or cancelling with a signed note explaining why.
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: Edward
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How you can use it
Start by listing the boundaries your coding assistant must never cross. Write down protected folders, maximum spending limits, and simple error limits. Your developer can install Edward to supervise unattended coding tasks, tracking file modifications and pausing the assistant if it gets stuck.
If you want advice on less obvious mistakes, your developer can link the tool to TypeSafe using a unique connection code. The service reviews recent activity to suggest whether to pause. This outside advice is only a suggestion, so Edward relies on strict built-in rules to halt dangerous actions.