diff --git a/docs/adr/ADR-0008-local-first-release-and-enrollment-contract-family.md b/docs/adr/ADR-0008-local-first-release-and-enrollment-contract-family.md
new file mode 100644
index 0000000..25756c9
--- /dev/null
+++ b/docs/adr/ADR-0008-local-first-release-and-enrollment-contract-family.md
@@ -0,0 +1,72 @@
+# ADR-0008 — Local-first release and enrollment contract family
+
+Status: Proposed
+
+## Context
+
+ADR-0007 reserved the local-first control-node and image-promotion seam in `SourceOS-Linux/sourceos-spec`.
+
+What remains missing is the first machine-readable contract family needed to make that seam executable for the thin local-first lifecycle slice:
+
+- assign a release to a device or cohort
+- optionally authorize a boot/install or recovery path
+- enroll a device or session against that assignment
+- realize operator/user experience and isolation posture
+- emit a post-apply fingerprint suitable for compliance and rollback decisions
+
+Without a canonical object family here, downstream repos risk re-inventing overlapping structures for release assignment, enrollment, host realization, and attestation.
+
+## Decision
+
+Reserve and introduce the first local-first control-plane contract family in this repository.
+
+The initial object family is:
+
+- `ExperienceProfile`
+- `IsolationProfile`
+- `ReleaseSet`
+- `BootReleaseSet`
+- `EnrollmentToken`
+- `Fingerprint`
+
+These objects define the minimum SourceOS local-first lifecycle seam for:
+
+1. profile selection
+2. release assignment
+3. boot/recovery authorization when needed
+4. enrollment and one-time redemption semantics
+5. post-apply attestation and compliance comparison
+
+## Repo ownership split
+
+This repository owns:
+
+- machine-readable schemas
+- normative object semantics
+- example payloads for the local-first lifecycle slice
+
+This repository does not own:
+
+- runtime execution enforcement (`SocioProphet/agentplane`)
+- workspace/fabric choreography (`SocioProphet/sociosphere`)
+- transport binding (`SocioProphet/TriTRPC`)
+
+## Consequences
+
+### Positive
+
+- gives SourceOS a canonical typed object family for local-first release control
+- avoids parallel release/enrollment/fingerprint vocabularies appearing downstream
+- creates a stable seam for `agentplane` and other consumers
+
+### Constraints
+
+- this tranche is intentionally minimal and additive
+- it does not yet define the full audit-event extension family
+- it does not yet standardize every possible config-source shape
+
+## Follow-on work
+
+1. Bind `ReleaseSet`, `BootReleaseSet`, `EnrollmentToken`, and `Fingerprint` into `SocioProphet/agentplane` runtime evidence surfaces.
+2. Add any required transport-safe references in `SocioProphet/TriTRPC` only after object semantics stabilize.
+3. Add broader `ConfigSource` and lifecycle event families as follow-on contracts if the thin slice proves sound.
diff --git a/examples/control-plane/README.md b/examples/control-plane/README.md
new file mode 100644
index 0000000..82be895
--- /dev/null
+++ b/examples/control-plane/README.md
@@ -0,0 +1,22 @@
+# Control-plane examples — local-first release family
+
+This directory contains example payloads for the first local-first SourceOS control-plane contract family.
+
+## Included examples
+
+- `experience-profile.sample.json`
+- `isolation-profile.sample.json`
+- `release-set.sample.json`
+- `boot-release-set.sample.json`
+- `enrollment-token.sample.json`
+- `fingerprint.sample.json`
+- `incident.freeze.sample.json` (existing)
+
+These examples are intended to support the thin local-first lifecycle slice:
+
+1. choose experience posture
+2. choose isolation posture
+3. assign a release
+4. optionally authorize boot/recovery
+5. redeem an enrollment token
+6. emit a post-apply fingerprint
diff --git a/examples/control-plane/boot-release-set.sample.json b/examples/control-plane/boot-release-set.sample.json
new file mode 100644
index 0000000..ef39fc0
--- /dev/null
+++ b/examples/control-plane/boot-release-set.sample.json
@@ -0,0 +1,13 @@
+{
+  "boot_release_set_id": "brs_local_0001",
+  "base_release_set_ref": "rs_local_0001",
+  "boot_mode": "recovery",
+  "status": "ready",
+  "artifacts": {
+    "kernel_ref": "artifact://boot/kernel/local-0001",
+    "initrd_ref": "artifact://boot/initrd/local-0001",
+    "rootfs_ref": "artifact://boot/rootfs/local-0001"
+  },
+  "created_at": "2026-04-15T22:05:00Z",
+  "notes": "Recovery boot artifacts for the assigned local release."
+}
diff --git a/examples/control-plane/enrollment-token.sample.json b/examples/control-plane/enrollment-token.sample.json
new file mode 100644
index 0000000..c02cbbb
--- /dev/null
+++ b/examples/control-plane/enrollment-token.sample.json
@@ -0,0 +1,15 @@
+{
+  "token_id": "tok_local_0001",
+  "purpose": "boot",
+  "audience": {
+    "subject_kind": "device",
+    "subject_id": "m2-control-node-01"
+  },
+  "release_set_ref": "rs_local_0001",
+  "boot_release_set_ref": "brs_local_0001",
+  "one_time_use": true,
+  "issued_at": "2026-04-15T22:06:00Z",
+  "expires_at": "2026-04-15T23:06:00Z",
+  "status": "issued",
+  "notes": "One-time local recovery boot token."
+}
diff --git a/examples/control-plane/experience-profile.sample.json b/examples/control-plane/experience-profile.sample.json
new file mode 100644
index 0000000..130a488
--- /dev/null
+++ b/examples/control-plane/experience-profile.sample.json
@@ -0,0 +1,13 @@
+{
+  "experience_profile_id": "xp_local_0001",
+  "profile_name": "Local desktop profile",
+  "shell": "zsh",
+  "desktop": "gnome",
+  "surfaces": ["cli", "gui", "browser"],
+  "defaults": {
+    "editor": "nvim",
+    "theme": "dark",
+    "accessibility_profile": null,
+    "workspace_layout": "default"
+  }
+}
diff --git a/examples/control-plane/fingerprint.sample.json b/examples/control-plane/fingerprint.sample.json
new file mode 100644
index 0000000..fd480b3
--- /dev/null
+++ b/examples/control-plane/fingerprint.sample.json
@@ -0,0 +1,24 @@
+{
+  "fingerprint_id": "fp_local_0001",
+  "subject": {
+    "kind": "device",
+    "id": "m2-control-node-01"
+  },
+  "release_set_ref": "rs_local_0001",
+  "experience_profile_ref": "xp_local_0001",
+  "isolation_profile_ref": "iso_local_0001",
+  "observed_at": "2026-04-15T22:10:00Z",
+  "integrity": {
+    "boot_release_set_ref": "brs_local_0001",
+    "image_ref": "oci://registry.example/sourceos/node-commander:2026.04.15-rc1",
+    "store_closure_hash": "sha256:example-closure-hash",
+    "boot_entry_label": "SourceOS Recovery"
+  },
+  "compliance": {
+    "status": "compliant",
+    "notes": "Observed state matches the assigned local release."
+  },
+  "evidence_refs": [
+    "artifact://evidence/fingerprint/fp_local_0001"
+  ]
+}
diff --git a/examples/control-plane/isolation-profile.sample.json b/examples/control-plane/isolation-profile.sample.json
new file mode 100644
index 0000000..ac7dc40
--- /dev/null
+++ b/examples/control-plane/isolation-profile.sample.json
@@ -0,0 +1,10 @@
+{
+  "isolation_profile_id": "iso_local_0001",
+  "profile_name": "Local mediated profile",
+  "execution_mode": "container",
+  "network_mode": "filtered",
+  "filesystem_mode": "mediated",
+  "secret_mode": "brokered",
+  "allowed_connector_classes": ["localfs", "git", "oci-registry"],
+  "notes": "Default isolation posture for local release application."
+}
diff --git a/examples/control-plane/release-set.sample.json b/examples/control-plane/release-set.sample.json
new file mode 100644
index 0000000..dfd073e
--- /dev/null
+++ b/examples/control-plane/release-set.sample.json
@@ -0,0 +1,24 @@
+{
+  "release_set_id": "rs_local_0001",
+  "release_version": "2026.04.15-rc1",
+  "status": "assigned",
+  "source": {
+    "git_ref": "refs/heads/main",
+    "git_commit": "8945f21"
+  },
+  "targets": [
+    {
+      "target_kind": "device",
+      "target_id": "m2-control-node-01"
+    }
+  ],
+  "experience_profile_ref": "xp_local_0001",
+  "isolation_profile_ref": "iso_local_0001",
+  "artifacts": {
+    "store_closure_hash": "sha256:example-closure-hash",
+    "image_ref": "oci://registry.example/sourceos/node-commander:2026.04.15-rc1",
+    "boot_release_set_ref": "brs_local_0001"
+  },
+  "created_at": "2026-04-15T22:00:00Z",
+  "notes": "First local-first release assignment sample."
+}
diff --git a/schemas/control-plane/README.md b/schemas/control-plane/README.md
new file mode 100644
index 0000000..b5a836d
--- /dev/null
+++ b/schemas/control-plane/README.md
@@ -0,0 +1,31 @@
+# Control-plane schema tranche — local-first release family
+
+This directory contains the first machine-readable contract family for the local-first SourceOS lifecycle slice.
+
+## Included schemas
+
+- `experience-profile.schema.json`
+- `isolation-profile.schema.json`
+- `release-set.schema.json`
+- `boot-release-set.schema.json`
+- `enrollment-token.schema.json`
+- `fingerprint.schema.json`
+- `incident-events.schema.json` (existing)
+
+## Intent
+
+These schemas define the minimum typed seam for:
+
+1. selecting operator/user experience posture
+2. selecting isolation posture
+3. assigning a release to a device, cohort, or site
+4. authorizing boot/recovery/install flows where required
+5. redeeming one-time enrollment tokens
+6. emitting post-apply fingerprints for compliance and rollback decisions
+
+## Downstream consumers
+
+- `SocioProphet/agentplane`
+- `SocioProphet/sociosphere` (by reference where needed)
+- `SocioProphet/TriTRPC` (transport-safe refs after stabilization)
+- SourceOS realization and installer lanes
diff --git a/schemas/control-plane/boot-release-set.schema.json b/schemas/control-plane/boot-release-set.schema.json
new file mode 100644
index 0000000..be73f52
--- /dev/null
+++ b/schemas/control-plane/boot-release-set.schema.json
@@ -0,0 +1,40 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://socioprophet.org/schemas/control-plane/boot-release-set.schema.json",
+  "title": "BootReleaseSet",
+  "description": "Boot/install or recovery artifacts associated with a local-first release assignment.",
+  "type": "object",
+  "additionalProperties": false,
+  "required": [
+    "boot_release_set_id",
+    "base_release_set_ref",
+    "boot_mode",
+    "status",
+    "artifacts",
+    "created_at"
+  ],
+  "properties": {
+    "boot_release_set_id": { "type": "string", "minLength": 1 },
+    "base_release_set_ref": { "type": "string", "minLength": 1 },
+    "boot_mode": {
+      "type": "string",
+      "enum": ["installer", "recovery", "ephemeral", "bootstrap"]
+    },
+    "status": {
+      "type": "string",
+      "enum": ["draft", "ready", "retired"]
+    },
+    "artifacts": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": ["kernel_ref", "initrd_ref", "rootfs_ref"],
+      "properties": {
+        "kernel_ref": { "type": "string", "minLength": 1 },
+        "initrd_ref": { "type": "string", "minLength": 1 },
+        "rootfs_ref": { "type": "string", "minLength": 1 }
+      }
+    },
+    "created_at": { "type": "string", "format": "date-time" },
+    "notes": { "type": ["string", "null"] }
+  }
+}
diff --git a/schemas/control-plane/enrollment-token.schema.json b/schemas/control-plane/enrollment-token.schema.json
new file mode 100644
index 0000000..607b355
--- /dev/null
+++ b/schemas/control-plane/enrollment-token.schema.json
@@ -0,0 +1,46 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://socioprophet.org/schemas/control-plane/enrollment-token.schema.json",
+  "title": "EnrollmentToken",
+  "description": "One-time or short-lived token used to enroll or authorize a local-first boot or recovery flow.",
+  "type": "object",
+  "additionalProperties": false,
+  "required": [
+    "token_id",
+    "purpose",
+    "audience",
+    "issued_at",
+    "expires_at",
+    "one_time_use",
+    "status"
+  ],
+  "properties": {
+    "token_id": { "type": "string", "minLength": 1 },
+    "purpose": {
+      "type": "string",
+      "enum": ["enroll", "boot", "repair", "recovery"]
+    },
+    "audience": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": ["subject_kind"],
+      "properties": {
+        "subject_kind": {
+          "type": "string",
+          "enum": ["device", "user", "operator", "session"]
+        },
+        "subject_id": { "type": ["string", "null"] }
+      }
+    },
+    "release_set_ref": { "type": ["string", "null"] },
+    "boot_release_set_ref": { "type": ["string", "null"] },
+    "one_time_use": { "type": "boolean" },
+    "issued_at": { "type": "string", "format": "date-time" },
+    "expires_at": { "type": "string", "format": "date-time" },
+    "status": {
+      "type": "string",
+      "enum": ["issued", "redeemed", "expired", "revoked"]
+    },
+    "notes": { "type": ["string", "null"] }
+  }
+}
diff --git a/schemas/control-plane/experience-profile.schema.json b/schemas/control-plane/experience-profile.schema.json
new file mode 100644
index 0000000..1b7eef5
--- /dev/null
+++ b/schemas/control-plane/experience-profile.schema.json
@@ -0,0 +1,47 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://socioprophet.org/schemas/control-plane/experience-profile.schema.json",
+  "title": "ExperienceProfile",
+  "description": "Local-first operator or user experience posture for a SourceOS host or release assignment.",
+  "type": "object",
+  "additionalProperties": false,
+  "required": [
+    "experience_profile_id",
+    "profile_name",
+    "shell",
+    "desktop",
+    "surfaces",
+    "defaults"
+  ],
+  "properties": {
+    "experience_profile_id": { "type": "string", "minLength": 1 },
+    "profile_name": { "type": "string", "minLength": 1 },
+    "shell": {
+      "type": "string",
+      "enum": ["bash", "zsh", "fish", "none"]
+    },
+    "desktop": {
+      "type": "string",
+      "enum": ["gnome", "cosmic", "none", "custom"]
+    },
+    "surfaces": {
+      "type": "array",
+      "minItems": 1,
+      "uniqueItems": true,
+      "items": {
+        "type": "string",
+        "enum": ["cli", "gui", "browser", "agent"]
+      }
+    },
+    "defaults": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "editor": { "type": ["string", "null"] },
+        "theme": { "type": ["string", "null"] },
+        "accessibility_profile": { "type": ["string", "null"] },
+        "workspace_layout": { "type": ["string", "null"] }
+      }
+    }
+  }
+}
diff --git a/schemas/control-plane/fingerprint.schema.json b/schemas/control-plane/fingerprint.schema.json
new file mode 100644
index 0000000..bf84383
--- /dev/null
+++ b/schemas/control-plane/fingerprint.schema.json
@@ -0,0 +1,61 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://socioprophet.org/schemas/control-plane/fingerprint.schema.json",
+  "title": "Fingerprint",
+  "description": "Post-apply attestation snapshot used to compare realized state against a local-first release assignment.",
+  "type": "object",
+  "additionalProperties": false,
+  "required": [
+    "fingerprint_id",
+    "subject",
+    "release_set_ref",
+    "observed_at",
+    "compliance"
+  ],
+  "properties": {
+    "fingerprint_id": { "type": "string", "minLength": 1 },
+    "subject": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": ["kind", "id"],
+      "properties": {
+        "kind": {
+          "type": "string",
+          "enum": ["device", "host", "session"]
+        },
+        "id": { "type": "string", "minLength": 1 }
+      }
+    },
+    "release_set_ref": { "type": "string", "minLength": 1 },
+    "experience_profile_ref": { "type": ["string", "null"] },
+    "isolation_profile_ref": { "type": ["string", "null"] },
+    "observed_at": { "type": "string", "format": "date-time" },
+    "integrity": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "boot_release_set_ref": { "type": ["string", "null"] },
+        "image_ref": { "type": ["string", "null"] },
+        "store_closure_hash": { "type": ["string", "null"] },
+        "boot_entry_label": { "type": ["string", "null"] }
+      }
+    },
+    "compliance": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": ["status"],
+      "properties": {
+        "status": {
+          "type": "string",
+          "enum": ["compliant", "drifted", "unknown", "failed"]
+        },
+        "notes": { "type": ["string", "null"] }
+      }
+    },
+    "evidence_refs": {
+      "type": "array",
+      "items": { "type": "string" },
+      "default": []
+    }
+  }
+}
diff --git a/schemas/control-plane/isolation-profile.schema.json b/schemas/control-plane/isolation-profile.schema.json
new file mode 100644
index 0000000..0aa7c9e
--- /dev/null
+++ b/schemas/control-plane/isolation-profile.schema.json
@@ -0,0 +1,42 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://socioprophet.org/schemas/control-plane/isolation-profile.schema.json",
+  "title": "IsolationProfile",
+  "description": "Isolation posture for a SourceOS host or release assignment.",
+  "type": "object",
+  "additionalProperties": false,
+  "required": [
+    "isolation_profile_id",
+    "profile_name",
+    "execution_mode",
+    "network_mode",
+    "filesystem_mode",
+    "secret_mode"
+  ],
+  "properties": {
+    "isolation_profile_id": { "type": "string", "minLength": 1 },
+    "profile_name": { "type": "string", "minLength": 1 },
+    "execution_mode": {
+      "type": "string",
+      "enum": ["host", "container", "microvm", "remote"]
+    },
+    "network_mode": {
+      "type": "string",
+      "enum": ["offline", "local_only", "filtered", "full"]
+    },
+    "filesystem_mode": {
+      "type": "string",
+      "enum": ["sealed", "mediated", "workspace_only", "broad"]
+    },
+    "secret_mode": {
+      "type": "string",
+      "enum": ["none", "brokered", "direct"]
+    },
+    "allowed_connector_classes": {
+      "type": "array",
+      "items": { "type": "string" },
+      "default": []
+    },
+    "notes": { "type": ["string", "null"] }
+  }
+}
diff --git a/schemas/control-plane/release-set.schema.json b/schemas/control-plane/release-set.schema.json
new file mode 100644
index 0000000..5972a0d
--- /dev/null
+++ b/schemas/control-plane/release-set.schema.json
@@ -0,0 +1,61 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://socioprophet.org/schemas/control-plane/release-set.schema.json",
+  "title": "ReleaseSet",
+  "description": "A local-first release assignment bundle for a device, cohort, site, or profile target.",
+  "type": "object",
+  "additionalProperties": false,
+  "required": [
+    "release_set_id",
+    "release_version",
+    "status",
+    "source",
+    "targets",
+    "experience_profile_ref",
+    "isolation_profile_ref",
+    "created_at"
+  ],
+  "properties": {
+    "release_set_id": { "type": "string", "minLength": 1 },
+    "release_version": { "type": "string", "minLength": 1 },
+    "status": {
+      "type": "string",
+      "enum": ["draft", "assigned", "active", "superseded"]
+    },
+    "source": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": ["git_ref", "git_commit"],
+      "properties": {
+        "git_ref": { "type": "string", "minLength": 1 },
+        "git_commit": { "type": "string", "minLength": 7 }
+      }
+    },
+    "targets": {
+      "type": "array",
+      "minItems": 1,
+      "items": {
+        "type": "object",
+        "additionalProperties": false,
+        "required": ["target_kind", "target_id"],
+        "properties": {
+          "target_kind": { "type": "string" },
+          "target_id": { "type": "string", "minLength": 1 }
+        }
+      }
+    },
+    "experience_profile_ref": { "type": "string", "minLength": 1 },
+    "isolation_profile_ref": { "type": "string", "minLength": 1 },
+    "artifacts": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "store_closure_hash": { "type": ["string", "null"] },
+        "image_ref": { "type": ["string", "null"] },
+        "boot_release_set_ref": { "type": ["string", "null"] }
+      }
+    },
+    "created_at": { "type": "string", "format": "date-time" },
+    "notes": { "type": ["string", "null"] }
+  }
+}