82 tools. 59 can modify or destroy data without limits.
7 destructive tools with no built-in limits. Policy required.
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Destructive tools (simulator_delete_device, simulator_erase, simulator_grant_permission) permanently delete resources. There is no undo. An agent calling these in a retry loop causes irreversible damage.
Write operations (simulator_add_media, simulator_boot, simulator_clone_device) modify state. Without rate limits, an agent can make hundreds of changes in seconds — faster than any human can review or revert.
Execute tools (simulator_biometric, simulator_icloud_sync, simulator_launch_app) trigger processes with side effects. Builds, notifications, workflows — all fired without throttling.
Intercept sits between your agent and Preflight Ios. Every tool call checked against your policy before it executes — so your agent can do its job without breaking things.
npx -y @policylayer/intercept scan -- npx -y @preflight-ios-mcp simulator_delete_device:
rules:
- action: deny Destructive tools should never be available to autonomous agents without human approval.
simulator_add_media:
rules:
- rate_limit: 30/hour Prevents bulk unintended modifications from agents caught in loops.
simulator_accessibility_audit:
rules:
- rate_limit: 60/minute Controls API costs and prevents retry loops from exhausting upstream rate limits.
Yes. The Preflight Ios server exposes 7 destructive tools including simulator_delete_device, simulator_erase, simulator_grant_permission. These permanently remove resources with no undo. Intercept blocks destructive tools by default so they never reach the upstream server.
The Preflight Ios server has 41 write tools including simulator_add_media, simulator_boot, simulator_clone_device. Set rate limits in your policy file -- for example, rate_limit: 10/hour prevents an agent from making more than 10 modifications per hour. Intercept enforces this at the transport layer.
82 tools across 4 categories: Destructive, Execute, Read, Write. 23 are read-only. 59 can modify, create, or delete data.
One line change. Instead of running the Preflight Ios server directly, prefix it with Intercept: intercept -c io-github-ethanackerman-git-preflight-ios-mcp.yaml -- npx -y @preflight-ios-mcp. Download a pre-built policy from policylayer.com/policies/io-github-ethanackerman-git-preflight-ios-mcp and adjust the limits to match your use case.
Starter policies available for each. Same risk classification, same one-command setup.
Set budgets, approvals, and hard limits across MCP servers.
See what your agent can donpx -y @policylayer/intercept