run.plan

The plan changed. Replaces the steps not yet done; the ones already done or failed keep their place.

Direction: Harness → Chips
Sent by: a harness
Requires a run: yes
Schema: run.plan.json

Fields

Every event also carries the envelope.

Field	Required	Type	Description
v	yes	1	Protocol major version.
type	yes	"run.plan"
id	yes	string	The event’s own id. Stable across a retry of the same event.
ts	yes	string	When it happened, by Chips’ clock. Stamped on the way in; a value the sender writes is replaced.
workspace_id	yes	string	A workspace identifier: ws_ followed by a ULID.
space_id	no	string	The space, when the event belongs to one.
run_id	no	string	The run, when the event belongs to one.
seq	no	number	Assigned by the server on append, monotonic per workspace. Absent on the way in.
idempotency_key	no	string	Required on every client-originated write. Sending the same key twice is a no-op.
actor	yes	object	The participant an event is attributed to.
actor.kind	yes	"person" | "harness" | "agent" | "system"	Whether a person, a harness, one of a harness’s agents or Chips itself acted.
actor.id	yes	string	The participant id, or system for Chips.
actor.harness_id	no	string	For an agent: the harness it speaks through, whose budget and runs are the agent’s (ADR 0087). Filled in by Chips.
plan	yes	object[]	The steps still to come, in order. Steps already done or failed stay ahead of these; a step still to do that is not here is dropped.
plan[].step_id	yes	string	Stable for the life of the run, so updates land on the right row.
plan[].title	yes	string	What this step will do.
reason	no	string	Why the plan changed, in a sentence: a steer, a surprise, a shortcut.

Example

{
  "v": 1,
  "type": "run.plan",
  "id": "evt_01K4ZQPX0000000000000000CB",
  "ts": "2026-09-02T14:22:20.504Z",
  "workspace_id": "ws_01K4ZQPX000000000000000001",
  "space_id": "spc_01K4ZQPX000000000000000002",
  "actor": {
    "kind": "harness",
    "id": "hrn_01K4ZQPX000000000000000004"
  },
  "run_id": "run_01K4ZQPX000000000000000005",
  "plan": [
    {
      "step_id": "email-dana",
      "title": "Email Dana to confirm, with the pallet count"
    },
    {
      "step_id": "update-tracker",
      "title": "Update the tracker"
    }
  ],
  "reason": "Arjun asked for the pallet count in the email."
}