{
	"version": 2,
	"id": "D08",
	"kind": "synthetic-chat",
	"origin": "synthetic",
	"actors": [
		"Hal",
		"Vic",
		"Lou"
	],
	"initialDocument": "",
	"steps": [
		{
			"id": "m1",
			"kind": "say",
			"actor": "Hal",
			"text": "how do we roll out the new parser without breaking every document?",
			"to": "room"
		},
		{
			"id": "m2",
			"kind": "say",
			"actor": "Vic",
			"text": "we could ship it behind a flag to 5% of rooms, or swap everyone at once after the migration.",
			"to": "room"
		},
		{
			"id": "m3",
			"kind": "say",
			"actor": "Lou",
			"text": "flag plus dual-read sounds safer. canary rooms first.",
			"to": "room"
		},
		{
			"id": "m4",
			"kind": "say",
			"actor": "Hal",
			"text": "dual-read is another implementation detail; the choice is staged vs all at once.",
			"to": "room"
		},
		{
			"id": "c4",
			"kind": "checkpoint",
			"waitFor": "settled",
			"deadlineMs": 30000
		},
		{
			"id": "m5",
			"kind": "say",
			"actor": "Vic",
			"text": "I'd do the 5% canary. we can stop it if the mismatch metric moves.",
			"to": "room"
		},
		{
			"id": "c5",
			"kind": "checkpoint",
			"waitFor": "settled",
			"deadlineMs": 30000
		},
		{
			"id": "m6",
			"kind": "say",
			"actor": "Lou",
			"text": "yes, staged. but let's set the rollback threshold before flipping it.",
			"to": "room"
		},
		{
			"id": "c6",
			"kind": "checkpoint",
			"waitFor": "settled",
			"deadlineMs": 30000
		}
	]
}