Sandboxed Delegation
Pattern
A pattern for delegating agent work into constrained execution environments whose tools, permissions, lifetime, and evidence trail are set before the work begins.
When To Use
Use this for coding agents, browser agents, MCP tools, data agents, and any system where a model can affect files, services, credentials, or external state.
Implementation Moves
- Choose the smallest execution boundary that can perform the task.
- Pass only task-specific credentials, files, network routes, and tool permissions.
- Capture commands, tool calls, artifacts, and verification outputs.
- Expire the environment and credentials after the run unless the policy explicitly permits persistence.
Source Evidence
- agent work needs runtime boundaries - Claim synthesis
- sandboxed agent execution - Harness synthesis
- ai sandboxes - Topic synthesis
- agent security - Topic synthesis
- 2026 06 30 robert brennan sandboxes aren t optional runtime isolation patterns for coding agents at scale - Official schedule
- 2026 06 30 samuel colvin your agent needs a sandbox not a desert - Official schedule
Evidence Boundary
This is a reusable pattern synthesized from linked conference evidence. Treat it as an engineering abstraction, not as an official event claim or a direct quote.