Crash-resumable agents
Every specialist writes the facts, constraints, decisions, and next action another process needs to continue without replaying the whole investigation.
Durable state for agent runtimes.
Continuity protocol for agent swarms
State Capsule is an SDK and protocol for checkpointing, restoring, and verifying agent work across processes, frameworks, and nodes.
state-capsule-sdk
Protocol trace
The next process starts with verified state.
Agent A
+04s
publishes signed capsule
Runtime
+21s
process crashes or hands off
Agent B
+38s
restores verified state
Adapter
+55s
resumes framework loop
Observer
+72s
verifies capsule chain
Capsule primitive
Minimal, portable, framework-agnostic.
task_id
support-ticket-482
capsule.head
0x8cf2...19ab
current_holder
agent-b
next_action
continue from checkpoint
64 KB soft cap
sdk contract
signed writes
sdk contract
schema migration
sdk contract
Verifiable handoffs
Capsules are signed, chained, anchored, and summarized through 0G Compute so receivers can trust what changed and why.
Real swarm topology
Triager, Reproducer, Patcher, and Reviewer coordinate over AXL as separate nodes with separate failure domains.
Demo application
MaintainerSwarm is the proof, not the product.
SDK
create, update, restore, verify, subscribe
Protocol
signed capsule chain with storage and anchor hooks
Demo
open-source maintenance swarm built on top
Architecture
Durability and coordination are separate on purpose.
State Capsule owns durable task state. Storage, chain anchors, task pointers, and live coordination are pluggable integration layers around the same capsule contract.
0G Storage
Mutable capsule head plus append-only log
0G Chain
Registry anchors for capsule lineage
0G Compute
Sealed summaries for fast restore
Gensyn AXL
Live multi-node coordination
ENS
Human-readable task pointers
Adapters
OpenClaw, LangChain, Vercel AI SDK
SDK surface
A small primitive with serious failure semantics.
MaintainerSwarm uses the same SDK surface available to any agent runtime. The adapters wire checkpoints into existing frameworks instead of asking teams to rewrite their stack.
OpenClawLangChainVercel AI SDKLlamaIndex
restoreCapsule.ts
const capsule = await restoreCapsule(taskId, {
verifyChain: true,
sealedSummary: true,
});
await updateCapsule(capsule, {
facts: [...capsule.facts, reproWindow],
next_action: "apply narrowed race fix",
created_by: "reproducer-02",
});