whereismyai
SIwithin
SIwithin is an agent CLI runner that executes tasks unattended inside a secure macOS sandbox and budget.
SIwithin runs agent command-line tools unattended while enforcing strict budget limits and folder access restrictions. It operates on macOS, utilizing a sandbox-exec profile to prevent the agent from accessing the user home folder or exceeding specified dollar caps. The tool supports Claude Code and OpenAI Codex command-line tools. For Claude, it routes requests through a loopback proxy that tracks usage and halts execution once the budget is reached. Every run generates a single record detailing costs and completion status.
SIwithin at a glance
Key features
- Runs agent CLIs unattended with folder and budget limits
- Sandboxes execution using macOS sandbox-exec profiles
- Meters API usage via a local loopback proxy
- Enforces hard dollar budgets and run timers
- Supports Claude Code and OpenAI Codex CLIs
- Generates a run ledger recording cost and status
Use it for
- Running AI coding agents safely within strict folder boundaries
- Controlling API costs during automated agent execution
- Executing unattended briefs with hard budget caps
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All SIwithin alternatives