Grain's published workflow vocabulary — protocol, run, gate, artifact, stop_reason.
Project description
grain-contracts
Grain owns the workflow capability, so Grain publishes the words for it: protocol, run, gate,
artifact, stop_reason.
This distribution carries only those types, with zero dependencies, so a service can speak
Grain's vocabulary without installing Grain's CLI. grain-kit re-exports the same types from
grain.contracts.workflow. Anything that wants to talk about a Grain workflow — a Postgres-backed
Missions runtime, an agent driving Grain headlessly — imports these types rather than inventing a
parallel set that drifts.
from grain_contracts.workflow import Run, StepRecord, Gate, RunStatus, StopReason
run = Run.from_dict(payload) # payload is a grain.workflow-run/v1 mapping
if run.status is RunStatus.AWAITING_GATE:
...
Types only. No reducer, no store, no I/O — contracts share types, not code. The storage-agnostic
run store and the pure advance() reducer are a separate promise, published as their own package.
Source and issues · MIT
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