diff --git a/.sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-EXECUTION-ATTEMPT.md b/.sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-EXECUTION-ATTEMPT.md
index 721f426..5daebc9 100644
--- a/.sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-EXECUTION-ATTEMPT.md
+++ b/.sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-EXECUTION-ATTEMPT.md
@@ -1,7 +1,7 @@
 ---
 name: cto-first-real-governed-workflow-execution-attempt
 tier: local
-status: blocked
+status: historical
 owner: jp
 source: .sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-ISSUES.md
 created: 2026-06-01
@@ -59,7 +59,7 @@ Backend evidence:
 
 ## Result
 
-Status: blocked.
+Status: historical failed attempt.
 
 Reason: the shell resolved `case` as a shell keyword, not an executable Case CLI. The Harness therefore failed closed before Case process start and before target mutation.
 
@@ -76,13 +76,17 @@ Observed Harness facts:
 
 ## Decision
 
-Do not mark `CTO-WORK-049` validated.
+Do not use this attempt to validate `CTO-WORK-049`.
 
 Do not patch the target by hand.
 
 Do not use fake or shell-keyword resolution as Case proof.
 
-Next useful step is to provide or build an executable Case CLI path and rerun the same approved Harness seam.
+Superseded by validated pass evidence:
+
+```text
+.sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-PASS-EVIDENCE.md
+```
 
 ## Non-Authority Notice
 
diff --git a/WORKBOARD.yaml b/WORKBOARD.yaml
index 589db32..1772b7d 100644
--- a/WORKBOARD.yaml
+++ b/WORKBOARD.yaml
@@ -252,7 +252,7 @@ items:
     owner: ""
   - id: CTO-WORK-051
     title: First Real Governed Workflow Execution Attempt
-    status: blocked
+    status: historical
     source: .sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-EXECUTION-ATTEMPT.md
     owner: jp
   - id: CTO-WORK-052
diff --git a/tools/validate_cto_child.py b/tools/validate_cto_child.py
index 7011457..6b8ac60 100644
--- a/tools/validate_cto_child.py
+++ b/tools/validate_cto_child.py
@@ -99,6 +99,8 @@ REQUIRED_FILES = [
     ".sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-PRD.md",
     ".sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-ISSUES.md",
     ".sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-APPROVAL-PACKET.md",
+    ".sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-EXECUTION-ATTEMPT.md",
+    ".sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-PASS-EVIDENCE.md",
     ".sot/03-PROTOCOLS/CTO-CASE-PROVIDER-ADMISSION-PRD.md",
     ".sot/03-PROTOCOLS/CTO-CASE-PROVIDER-ADMISSION-ISSUES.md",
     ".sot/03-PROTOCOLS/CTO-CASE-PROVIDER-BUILD-PRD.md",
@@ -231,6 +233,20 @@ REQUIRED_FIRST_REAL_WORKFLOW_APPROVAL_PACKET_PHRASES = [
     "Runtime default activation remains false.",
 ]
 
+REQUIRED_FIRST_REAL_WORKFLOW_ATTEMPT_PHRASES = [
+    "status: historical",
+    "Status: historical failed attempt.",
+    "Do not use this attempt to validate `CTO-WORK-049`.",
+    ".sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-PASS-EVIDENCE.md",
+]
+
+REQUIRED_FIRST_REAL_WORKFLOW_PASS_PHRASES = [
+    "status: validated",
+    "`CTO-WORK-049` is validated as the first real governed workflow execution.",
+    "Runtime default activation remains false.",
+    "This evidence does not promote CTO artifacts into Core",
+]
+
 REQUIRED_HERMES_WEBUI_CONTROL_PANEL_PHRASES = [
     "Local planning SOT only. Not a Core Protocol. Not active Core authority.",
     "Hermes WebUI consumer panel",
@@ -1997,6 +2013,26 @@ def main() -> int:
         if "core_promotion_status: not-promoted" not in text:
             errors.append("brief_missing_not_promoted_frontmatter")
 
+    first_real_workflow_attempt = ROOT / ".sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-EXECUTION-ATTEMPT.md"
+    if first_real_workflow_attempt.is_file():
+        text = first_real_workflow_attempt.read_text(encoding="utf-8")
+        if "core_promotion_status: not-promoted" not in text:
+            errors.append("first_real_workflow_attempt_missing_not_promoted_frontmatter")
+        for phrase in REQUIRED_FIRST_REAL_WORKFLOW_ATTEMPT_PHRASES:
+            checked.append(f"first_real_workflow_attempt_phrase:{phrase}")
+            if phrase not in text:
+                errors.append(f"missing_first_real_workflow_attempt_phrase:{phrase}")
+
+    first_real_workflow_pass = ROOT / ".sot/03-PROTOCOLS/CTO-FIRST-REAL-GOVERNED-WORKFLOW-PASS-EVIDENCE.md"
+    if first_real_workflow_pass.is_file():
+        text = first_real_workflow_pass.read_text(encoding="utf-8")
+        if "core_promotion_status: not-promoted" not in text:
+            errors.append("first_real_workflow_pass_missing_not_promoted_frontmatter")
+        for phrase in REQUIRED_FIRST_REAL_WORKFLOW_PASS_PHRASES:
+            checked.append(f"first_real_workflow_pass_phrase:{phrase}")
+            if phrase not in text:
+                errors.append(f"missing_first_real_workflow_pass_phrase:{phrase}")
+
     stage6_real_refresh_prd = ROOT / ".sot/03-PROTOCOLS/CTO-CASE-STAGE6-REAL-GOVERNED-REFRESH-PRD.md"
     if stage6_real_refresh_prd.is_file():
         text = stage6_real_refresh_prd.read_text(encoding="utf-8")
@@ -3192,7 +3228,7 @@ def main() -> int:
             "CTO-WORK-048": "validated",
             "CTO-WORK-049": "validated",
             "CTO-WORK-050": "validated",
-            "CTO-WORK-051": "blocked",
+            "CTO-WORK-051": "historical",
             "CTO-WORK-052": "validated",
             "CTO-WORK-053": "validated",
             "CTO-WORK-054": "validated",