# Isolating Autonomous SWE Agents: Sub-150ms Firecracker MicroVMs vs Stateful Dev Containers

> **Direct Answer (October 2026 Verified Scenario)**: E2B Firecracker microVMs provide hardware-virtualized <150ms cold starts for untrusted code execution, while Daytona excels when agents require persistent, stateful git/container workspaces.

- **Canonical URL**: https://pulse-forge.io/scenario/e2b-vs-daytona-secure-agent-code-sandbox-sizing
- **Download Free Starter CLAUDE.md ($0)**: https://pulse-forge.io/api/launch-kit/free-claude-md?repo=All-Hands-AI/OpenHands
- **1-Click $4.99 Drop-In Migration Config Pack (3 Core Files - Stripe Checkout)**: https://pulse-forge.io/buy/micro_pass?repo=All-Hands-AI/OpenHands&source=md_scenario
- **1-Click $9.99 Complete 9-File Production Config .ZIP (Stripe Checkout)**: https://pulse-forge.io/buy/repo_pass_999?repo=All-Hands-AI/OpenHands&source=md_scenario_999
- **1-Click $49 Verified Leaderboard Boost (Stripe Checkout)**: https://pulse-forge.io/buy/instant_boost?repo=All-Hands-AI/OpenHands&source=md_scenario_49
- **Trigger Symptom**: Host credential exposure or 12-second container cold starts when executing LLM-generated bash/Python
- **Root Cause**: Running untrusted agent-generated code inside shared Docker daemons or slow cold-boot cloud VMs.
- **Baseline Context Tokens/Turn**: `21,800` -> **Hardened**: `9,150` (`-58%`)
- **5-Engineer Monthly Savings**: `$305.00/mo`
- **Recommended Reference Repo**: `All-Hands-AI/OpenHands` (https://pulse-forge.io/launch-kit?repo=All-Hands-AI/OpenHands)