Runtime SDK

Supported package:

@proof-computer/liskov-runtime
github:proof-computer/liskov-runtime-js#v0.3.26

The main export keeps the compatibility name bootstrapSlipwayRuntime. bootstrapLiskovRuntime is an alias in this release. Use the documented high-level handle rather than low-level protocol modules.

Minimal call

const runtime = await bootstrapSlipwayRuntime({
  component: "worker",
  revision: "release-2026-07-28"
});

Handle

Member	Contract
home	Resolved SDK state directory.
env.get(name)	Return a final runtime value or undefined.
env.require(name)	Return a final runtime value or throw when absent.
status()	Return current identity, blockers, and capability states.
whenReady()	Resolve immediately when required capabilities are ready; otherwise throw SlipwayRuntimeNotReadyError.
log(event, details?, options?)	Emit a structured Liskov log record.
flush()	Bounded log flush returning counts and state.
refreshNow()	Refresh runtime env, make one eligible background-secret attempt, then refresh logging.
diagnostics.report(...)	Send an ordinary bounded signed diagnostic.
diagnostics.fatal(...)	First-call-wins terminal boundary; close health/logging and make one bounded signed attempt.
stop()	Synchronously and idempotently stop SDK timers/retries.

stop() does not stop the Acurast job.

Capability states

runtimeEnv, secrets, logging, diagnostics, and the optional ingress adapter use:

State	Meaning
off	Intentionally disabled.
pending	Work has not reached a conclusion.
ready	Current capability is usable.
degraded	Partially available; inspect code/message.
failed	Attempt failed.
blocked	Prerequisite or trust condition prevents progress.

Each capability also states whether it is required. status.ready is true only when all required capabilities are ready.

Common bootstrap options

Option	Values/default
appId, component, revision	Optional diagnostic/log metadata. The SDK never derives Application UID from the slug.
home	Explicit state root; otherwise compatibility env, user home, then /tmp/slipway.
secrets.mode	required, background, or off; required when signed bootstrap says secrets are required.
secrets.retry	Defaults: initial 0 ms, interval 5,000 ms, max elapsed 60,000 ms, max attempts 12.
logging.mode	background by default; also required or off.
logging.earlyBufferMaxRecords	Default 100 in-memory early records.
logging.spoolMode	auto, disk, or memory.
runtimeHealth	Optional interval, initial delay, and send-timeout overrides.
diagnostics	Local callback for redacted SDK events.

Transport, clock, environment, identity, randomness, and timer injection options are test hooks; production code normally leaves them unset.

Lookup and bootstrap order

Initial values are read from process environment, then Acurast _STD_.env, then Acurast environment(name). Signed Liskov bootstrap is authoritative for the current job, installs runtime-env values, obtains required secret grants, and then attaches logging. Application code should read through runtime.env only after bootstrap.

Reserved compact environment values are compatibility wire contracts supplied by Liskov. Customers should not create, expose, or copy them manually.

Logging types

Severity is debug, info, warn, or error. Labels are string pairs. flush() returns {ok, state, flushed, pending, dropped, message?}. Application log details must be JSON-safe and non-secret.

See Use the Liskov runtime SDK for a guided entrypoint.