diff --git a/spec/functional/FR-015-service-discovery-client.md b/spec/functional/FR-015-service-discovery-client.md
index 4f16f15..b8836e0 100644
--- a/spec/functional/FR-015-service-discovery-client.md
+++ b/spec/functional/FR-015-service-discovery-client.md
@@ -8,7 +8,7 @@ relationships:
     type: "implements"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-016"
-    type: "required-by"
+    type: "required_by"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/non-functional/NFR-005"
     type: "requires"
diff --git a/spec/functional/FR-016-device-flow-runner.md b/spec/functional/FR-016-device-flow-runner.md
index 6454ca0..b40d7b0 100644
--- a/spec/functional/FR-016-device-flow-runner.md
+++ b/spec/functional/FR-016-device-flow-runner.md
@@ -11,7 +11,7 @@ relationships:
     type: "requires"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-017"
-    type: "required-by"
+    type: "required_by"
     cardinality: "1:1"
 ---
 
diff --git a/spec/functional/FR-018-browser-opener.md b/spec/functional/FR-018-browser-opener.md
index 2168c3f..0fd28f1 100644
--- a/spec/functional/FR-018-browser-opener.md
+++ b/spec/functional/FR-018-browser-opener.md
@@ -8,7 +8,7 @@ relationships:
     type: "implements"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-016"
-    type: "required-by"
+    type: "required_by"
     cardinality: "1:1"
 ---
 
diff --git a/spec/functional/FR-020-agent-context-detection.md b/spec/functional/FR-020-agent-context-detection.md
index ec5ddc5..3b77c84 100644
--- a/spec/functional/FR-020-agent-context-detection.md
+++ b/spec/functional/FR-020-agent-context-detection.md
@@ -8,7 +8,7 @@ relationships:
     type: "implements"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-021"
-    type: "required-by"
+    type: "required_by"
     cardinality: "1:1"
 ---
 
diff --git a/spec/functional/FR-022-agent-config-chooser.md b/spec/functional/FR-022-agent-config-chooser.md
index c8b3639..5b2d537 100644
--- a/spec/functional/FR-022-agent-config-chooser.md
+++ b/spec/functional/FR-022-agent-config-chooser.md
@@ -14,7 +14,7 @@ relationships:
     type: "requires"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-021"
-    type: "required-by"
+    type: "required_by"
     cardinality: "1:1"
 ---
 
diff --git a/spec/non-functional/NFR-001-no-plaintext-secrets.md b/spec/non-functional/NFR-001-no-plaintext-secrets.md
index b5258b0..571d389 100644
--- a/spec/non-functional/NFR-001-no-plaintext-secrets.md
+++ b/spec/non-functional/NFR-001-no-plaintext-secrets.md
@@ -4,13 +4,13 @@ title: "No Plaintext Secret Values Persisted on Disk"
 type: NFR
 relationships:
   - target: "ix://agent-ix/ix-cli-core/spec/stakeholder/StR-002"
-    type: "implements"
+    type: "traces_to"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-005"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-007"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
 ---
 
diff --git a/spec/non-functional/NFR-002-sensitive-file-permissions.md b/spec/non-functional/NFR-002-sensitive-file-permissions.md
index afbe8bd..a678473 100644
--- a/spec/non-functional/NFR-002-sensitive-file-permissions.md
+++ b/spec/non-functional/NFR-002-sensitive-file-permissions.md
@@ -4,13 +4,13 @@ title: "Sensitive Files Created Mode 0600 via Atomic Temp+Rename"
 type: NFR
 relationships:
   - target: "ix://agent-ix/ix-cli-core/spec/stakeholder/StR-002"
-    type: "implements"
+    type: "traces_to"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-001"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-007"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
 ---
 
diff --git a/spec/non-functional/NFR-003-schema-error-ux.md b/spec/non-functional/NFR-003-schema-error-ux.md
index 97c0c84..b4271fd 100644
--- a/spec/non-functional/NFR-003-schema-error-ux.md
+++ b/spec/non-functional/NFR-003-schema-error-ux.md
@@ -4,13 +4,13 @@ title: "Schema Validation Errors Are Actionable"
 type: NFR
 relationships:
   - target: "ix://agent-ix/ix-cli-core/spec/stakeholder/StR-001"
-    type: "implements"
+    type: "traces_to"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-001"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-008"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
 ---
 
diff --git a/spec/non-functional/NFR-004-secrets-backend-pluggability.md b/spec/non-functional/NFR-004-secrets-backend-pluggability.md
index a24bd96..dc87054 100644
--- a/spec/non-functional/NFR-004-secrets-backend-pluggability.md
+++ b/spec/non-functional/NFR-004-secrets-backend-pluggability.md
@@ -4,10 +4,10 @@ title: "Secrets Backend Adapter Pluggability"
 type: NFR
 relationships:
   - target: "ix://agent-ix/ix-cli-core/spec/stakeholder/StR-002"
-    type: "implements"
+    type: "traces_to"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-005"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
 ---
 
diff --git a/spec/non-functional/NFR-005-auth-host-isolation-tls.md b/spec/non-functional/NFR-005-auth-host-isolation-tls.md
index 64f7eec..b0a9ae2 100644
--- a/spec/non-functional/NFR-005-auth-host-isolation-tls.md
+++ b/spec/non-functional/NFR-005-auth-host-isolation-tls.md
@@ -4,13 +4,13 @@ title: "Auth Host Isolation and TLS-Only Discovery"
 type: NFR
 relationships:
   - target: "ix://agent-ix/ix-cli-core/spec/stakeholder/StR-002"
-    type: "implements"
+    type: "traces_to"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-015"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-017"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
 ---
 
diff --git a/spec/non-functional/NFR-006-auth-tokens-never-plaintext.md b/spec/non-functional/NFR-006-auth-tokens-never-plaintext.md
index 52c5ee2..58fc133 100644
--- a/spec/non-functional/NFR-006-auth-tokens-never-plaintext.md
+++ b/spec/non-functional/NFR-006-auth-tokens-never-plaintext.md
@@ -4,13 +4,13 @@ title: "Auth Tokens Never Persisted in Plaintext"
 type: NFR
 relationships:
   - target: "ix://agent-ix/ix-cli-core/spec/stakeholder/StR-002"
-    type: "implements"
+    type: "traces_to"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-017"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/non-functional/NFR-001"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
 ---
 
diff --git a/spec/non-functional/NFR-007-safe-bootstrap-boundaries.md b/spec/non-functional/NFR-007-safe-bootstrap-boundaries.md
index 3ad681f..0e61094 100644
--- a/spec/non-functional/NFR-007-safe-bootstrap-boundaries.md
+++ b/spec/non-functional/NFR-007-safe-bootstrap-boundaries.md
@@ -4,13 +4,13 @@ title: "Safe Agent-Bootstrap Boundaries"
 type: NFR
 relationships:
   - target: "ix://agent-ix/ix-cli-core/spec/stakeholder/StR-003"
-    type: "implements"
+    type: "traces_to"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-020"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
   - target: "ix://agent-ix/ix-cli-core/spec/functional/FR-021"
-    type: "requires"
+    type: "depends_on"
     cardinality: "1:1"
 ---
 
diff --git a/spec/spec.md b/spec/spec.md
index 666a344..c10fa96 100644
--- a/spec/spec.md
+++ b/spec/spec.md
@@ -13,7 +13,7 @@ implementation_language: typescript
 depends_on: []
 relationships:
   - target: "ix://agent-ix/ix-cli"
-    type: "consumed-by"
+    type: "consumed_by"
     cardinality: "1:N"
 
 standards_alignment: