KeepState and built-in session resume
The job
Most agent clients ship their own persistence: Claude Code documents resume and continue flags that restore the conversation transcript, and that is often exactly enough. KeepState saves the machine the client runs on, so the environment the transcript assumed is still there when the work wakes.
The boundary
These tools solve different parts of running agent work. This page compares the relevant boundary, not every feature. This page compares a transcript against a machine, because 'the agent has resume' and 'the session is durable' are different claims: files mid-edit, processes mid-run and a model call that died mid-stream are not in a transcript.
Each row below carries two things it did not get from memory: what this page says about built-in session resume, with the official source it came from and the date that source was last checked, and the KeepState side with its exact deployment and access state from the generated capability record (tested release v0.1.26, as of 2026-10-23). Where the answer is that built-in session resume is the better fit, the row says so.
Where built-in session resume is sufficient
When the transcript is the state, the resume that ships with the client you already run is enough.
Transcript continuity is the actual need: pick the conversation back up in a fresh environment and let the agent re-derive its footing.
Your workspace is cheap to reconstruct: a git checkout and a package install put the world back.
Zero extra infrastructure: it comes with the client you already run.
Interruptions are rare enough that an occasional broken call does not matter to you.
Where KeepState may add value
The environment IS the state: half-written files, a debugger session, background processes, an eight-gigabyte build directory the transcript merely points at.
The kill is hard: machine gone, daemon gone. A transcript resume assumes a surviving filesystem; a machine checkpoint does not.
The interrupted call itself must not be re-bought: the transcript cannot replay a response it never received; the gateway can.
You need lineage: fork the same hour-five state three ways and compare, which no transcript alone can express.
Compare every dimension
| dimension | built-in session resume | KeepState |
|---|---|---|
| What resumes | The conversation: messages and tool history, re-fed to the model. Source: Claude Code documentation, checked 2026-08-26 | The machine: memory image, processes, files, then the conversation inside it. Evidence: proven in the stated test. Deployment: enabled in production. Access: self-serve. Release v0.1.26, as of 2026-10-23. current state · proof |
| Workspace state | Whatever the filesystem still holds; a fresh environment starts from the repository. Source: Claude Code documentation, checked 2026-08-26 | The exact byte state at checkpoint, restored atomically or refused. Evidence: proven in the stated test. Deployment: enabled in production. Access: self-serve. Release v0.1.26, as of 2026-10-23. current state · proof |
| The dying call | Not compared here. No current official source is recorded for this row, so this page makes no statement about built-in session resume on this point. No source recorded, so no claim is made. | Stored at the gateway and replayed at zero new cost when the client retries. Evidence: proven in the stated test. Deployment: proven, not enabled in production. Access: limited access. Release v0.1.26, as of 2026-10-23. current state · proof |
| Cost of adoption | It ships with the client you already run. Source: Claude Code documentation, checked 2026-08-26 | Run your agent inside a hosted KeepState session; the ks client is the whole install. Evidence: proven in the stated test. Deployment: enabled in production. Access: self-serve. Release v0.1.26, as of 2026-10-23. current state |
| Cross-client | Defined by the client you run, in that client's own documentation. Source: Claude Code documentation, checked 2026-08-26 | Agent-agnostic at the machine layer; two agents gated so far, and the compatibility table names them. Evidence: proven in the stated test. Deployment: proven, not enabled in production. Access: limited access. Release v0.1.26, as of 2026-10-23. current state |
| Honest overlap | For pure-conversation work, built-in resume alone is enough and this page says so. Source: Claude Code documentation, checked 2026-08-26 | KeepState adds value when environment, billing, or lineage outlive the transcript. This row states no KeepState capability, so no deployment state applies. As of 2026-10-23. current state |
Current integration status
No integration is required and none is implied: inside a KeepState session the client's own resume still works and is still useful for its transcript semantics. The machine checkpoint underneath it means the transcript's assumptions (files, processes, half-finished work) are actually true when it wakes.
Sources for what this page says about built-in session resume: Claude Code documentation, checked 2026-08-26. Naming a product here implies no partnership, integration, endorsement or compatibility in either direction. What KeepState claims about itself carries its own evidence; what this page says about another product is an observation with a date, and a wrong sentence is a finding we will fix.
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