Rulvar API reference / @rulvar/rulvar / hashRunOutput
Function: hashRunOutput()
ts
function hashRunOutput(value): string | undefined;Defined in: packages/core/dist/index.d.ts
sha256 hex over the JCS canonical serialization of a run's result value: the digest the engine records as outputHash on the journaled run-settle decision when the settling segment computed a value, and the value rulvar replay --compare-output-hash compares a replayed result against (RV-209). Best-effort by design: returns undefined for undefined values and for values JCS cannot serialize (functions, cycles, non-finite numbers), so an unhashable result records no baseline rather than failing the settle. Like hashRunArgs, the digest is deterministic and unsalted: treat it as sensitive-derived metadata for low-entropy results.
Parameters
| Parameter | Type |
|---|---|
value | unknown |
Returns
string | undefined