Rat Things field guides
Practical guides for
durable cloud agents.
Start with the problem and build the agent second. These guides give practical answers for long-running Codex work, durable state, connected accounts, schedules, and self-hosted AWS execution. Each separates the general design problem from one concrete Rat Things implementation.
Direct answerTradeoffsWorking exampleMeasured evidence
Run Codex beyond your laptop
Keep work running, durable, and repeatable after the local process ends.
How to keep Codex running after you close your laptop
Learn what must move off your laptop, which state must persist, and how a self-hosted AWS handoff keeps Codex work running after disconnect.
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How to run Codex in AWS with your ChatGPT subscription
Run Codex in isolated AWS compute using a deliberately bridged ChatGPT login, with the credential risks and teardown path made explicit.
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Durable AI agent state
Preserve an agent conversation, workspace, files, and execution receipts when a process stops or replacement compute takes over.
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How to schedule recurring Codex tasks in AWS
Schedule owned Agents in AWS with fixed capabilities, idempotent Session input and durable Turn results.
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Connect agents to real work
Let agents use business systems without turning every credential into unrestricted authority.
How to give an AI agent limited access to Slack and Linear
Give an AI agent bounded Slack or Linear operations by intersecting provider scopes, account grants, run policy, IAM, and network controls.
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How to turn a Slack request into a Linear issue with an AI agent
Build a bounded Slack-to-Linear workflow, understand which permissions are enforced, and add host-side protection when duplicate issues are unacceptable.
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Choose an agent architecture
Make the cost, control, and operating tradeoffs explicit before committing to a platform.
How much does it cost to run an isolated AI agent in AWS?
Understand the model, active compute, snapshot, networking, storage, and idle costs behind a self-hosted AI agent running in AWS.
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Self-hosted versus managed cloud agents: how to choose
Compare self-hosted and managed cloud agents by control plane, identity, credentials, isolation, durability, operations, and team burden.
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