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Simple mode (the default when you pass -y, or when you explicitly pass --simple) asks you for only two things: pack and profile. Everything else is derived from smart defaults so you can go from zero to running agent in one command. This page documents every value that gets set automatically, so you know exactly what you’re getting.

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Instance size

Instance size is determined by your profile: All instances are ARM64 Graviton. To pick a different size, use advanced mode.

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Security services

Builder and account_assistant profiles enable all five AWS security services by default. Personal assistant disables them all to keep cost near zero — that profile has no AWS write access, so there is nothing to monitor. See AWS security services enabled by Lowkey for what each service does and approximate costs.

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Region

Default region: us-east-1. Override by setting AWS_REGION or AWS_DEFAULT_REGION in your shell before running the installer, or by switching to advanced mode.

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Volume sizes

Root volume is 40 GB for every pack. Data volume size depends on the pack: OpenClaw and NemoClaw use a separate data volume for persistent agent state and workspaces. Packs that don’t maintain heavy state skip the data volume.

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VPC settings

Simple mode creates a new VPC every time. Advanced mode prompts for VPC reuse if any loki:managed=true VPC already exists in the region.

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IAM managed policies

The EC2 instance gets an instance profile with a policy appropriate for the profile you chose: Every profile also gets AmazonSSMManagedInstanceCore so you can connect via SSM Session Manager.

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SSH

SSH is disabled by default. The security group sets SSHAllowedCidr=127.0.0.1/32, which means no inbound SSH is reachable from outside the instance. Use SSM Session Manager to connect. To enable SSH, run in advanced mode and set SSHAllowedCidr to your own IP CIDR (for example, 1.2.3.4/32).

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Model defaults

Each pack ships with its own default model. The installer sets this automatically — you never have to look it up:

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Environment naming

Simple mode auto-generates an environment name using the format <pack>-<sequence>-<timestamp-suffix>:
The sequence number counts existing loki:managed=true VPCs in your region so you never collide with a previous deployment.

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Resource tagging

Every resource Lowkey creates is tagged with:
  • loki:managed=true
  • loki:watermark=<env-name>
This makes it easy to find and clean up everything the installer created:

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What simple mode does not decide for you

You still provide:
  • Pack — required; no default.
  • Profile — defaults to builder if you pass -y without --profile.
  • Deploy method — defaults to CloudFormation CLI.
Any value you pass explicitly as a flag always overrides the simple mode default.