diff --git a/contracts/capability/admission.go b/contracts/capability/admission.go
index 69c7b23..96a6d96 100644
--- a/contracts/capability/admission.go
+++ b/contracts/capability/admission.go
@@ -27,10 +27,10 @@ type AdmissionPolicy struct {
 }
 
 type AdmissionRequest struct {
-	Complexity     AdmissionComplexity
-	InputBytes     int
-	MaxOutputBytes int
-	DeadlineMillis int64
+	Complexity     AdmissionComplexity `json:"complexity"`
+	InputBytes     int                 `json:"input_bytes"`
+	MaxOutputBytes int                 `json:"max_output_bytes"`
+	DeadlineMillis int64               `json:"deadline_millis"`
 }
 
 type AdmissionCounters struct {
@@ -39,14 +39,14 @@ type AdmissionCounters struct {
 }
 
 type AdmissionDecision struct {
-	State    AdmissionDecisionState
-	Reason   AdmissionReason
-	PolicyID string
+	State    AdmissionDecisionState `json:"state"`
+	Reason   AdmissionReason        `json:"reason"`
+	PolicyID string                 `json:"policy_id"`
 }
 
 type AdmissionLease struct {
-	ID       string
-	PolicyID string
+	ID       string `json:"id"`
+	PolicyID string `json:"policy_id"`
 }
 
 func Admit(request AdmissionRequest, policy AdmissionPolicy, counters AdmissionCounters, nowMillis int64) AdmissionDecision {
diff --git a/dev/ACTIVE_TASK.json b/dev/ACTIVE_TASK.json
index 1486695..08d7180 100644
--- a/dev/ACTIVE_TASK.json
+++ b/dev/ACTIVE_TASK.json
@@ -1,5 +1,5 @@
 {
   "task_file": "dev/tasks/DEV-000115-cognitive-admission-control.json",
   "task_id": "DEV-000115",
-  "task_revision": 2
+  "task_revision": 3
 }
diff --git a/dev/tasks/DEV-000115-cognitive-admission-control.json b/dev/tasks/DEV-000115-cognitive-admission-control.json
index b0d3f3e..2184d36 100644
--- a/dev/tasks/DEV-000115-cognitive-admission-control.json
+++ b/dev/tasks/DEV-000115-cognitive-admission-control.json
@@ -1,6 +1,6 @@
 {
   "task_id": "DEV-000115",
-  "task_revision": 2,
+  "task_revision": 3,
   "architecture_revision": "ADR-0018",
   "base_repo_revision": "9b26260",
   "risk_tier": "E",
diff --git a/tests/cognitive_admission/admission_test.go b/tests/cognitive_admission/admission_test.go
index 4268a76..4f32017 100644
--- a/tests/cognitive_admission/admission_test.go
+++ b/tests/cognitive_admission/admission_test.go
@@ -1,6 +1,8 @@
 package cognitive_admission_test
 
 import (
+	"encoding/json"
+	"strings"
 	"testing"
 
 	"git.cin.su/m/Assistant/contracts/capability"
@@ -26,6 +28,13 @@ func TestAdmitReturnsExplainableDecision(t *testing.T) {
 	}
 }
 
+func TestAdmissionRequestUsesStableWireFields(t *testing.T) {
+	raw, err := json.Marshal(capability.AdmissionRequest{Complexity: capability.AdmissionNormal, InputBytes: 10, MaxOutputBytes: 20, DeadlineMillis: 30})
+	if err != nil || !strings.Contains(string(raw), `"input_bytes":10`) || !strings.Contains(string(raw), `"max_output_bytes":20`) || !strings.Contains(string(raw), `"deadline_millis":30`) {
+		t.Fatalf("admission wire shape drifted: %s %v", raw, err)
+	}
+}
+
 func TestAdmitRejectsBudgetAndDeadline(t *testing.T) {
 	policy := capability.AdmissionPolicy{ID: "local-v1", MaxConcurrent: 1, MaxAcceptedPerHour: 1, MaxInputBytes: 10, MaxOutputBytes: 10}
 	if decision := capability.Admit(capability.AdmissionRequest{InputBytes: 11, MaxOutputBytes: 1}, policy, capability.AdmissionCounters{}, 1); decision.Reason != capability.AdmissionReasonInputBudget {