A take is a comparison: the host's facts, former targets, and strays (hq ADR 0163)

Every held thing carries what a take compares: for a found container its image and the image's date,
the networks it is on and the other containers on each, its mounts and published ports, beside the
declared image (and its date once pulled), ports and volumes, with the downgrade decided when both
dates are known; for a found file whether the declared content differs and how, as lines lost and
lines new. A resource whose target moved keeps the former target on record as an orphan, so the next
apply removes the container or file the host wrote under the old name (issue 097). Every apply reports
the strays: containers the mesh neither wrote nor holds.

internal/link/messages.go

@@ -110,6 +110,10 @@ type Report struct {
 	// and the mesh's up in its place, and where the found configuration's original was kept.
 	Tunnel *CarriedTunnel `json:"tunnel,omitempty"`
 
+	// Strays is what runs on the machine that the mesh neither wrote nor holds (novox/hq ADR
+	// 0163): containers nobody declared and nobody holds, the ones a cutover leaves behind.
+	Strays []Stray `json:"strays,omitempty"`
+
 	// Profile is what this machine can do, detected again by the apply that reports (novox/hq
 	// ADR 0161) — the same shape enrolment sends — so a capability gained or lost since enrolment,
 	// a network manager switched, reaches the mesh at the next push rather than never.
@@ -205,6 +209,16 @@ type Held struct {
 	Changed string `json:"changed,omitempty"`
 	// Kept is where a file's original was kept.
 	Kept string `json:"kept,omitempty"`
+	// Facts is the found thing beside what the module declares — what a take compares (novox/hq
+	// ADR 0163). The same shape the host keeps; the controller reads it as data.
+	Facts map[string]any `json:"facts,omitempty"`
+}
+
+// A Stray is a container the mesh neither wrote nor holds (ADR 0163).
+type Stray struct {
+	Kind   string `json:"kind"`
+	Name   string `json:"name"`
+	Detail string `json:"detail,omitempty"`
 }
 
 // Reach is one thing reachable on the machine: a listening socket, or a published container port.