diff --git a/go.mod b/go.mod
index 23017519..b79a9624 100644
--- a/go.mod
+++ b/go.mod
@@ -12,7 +12,7 @@ require (
 	charm.land/bubbletea/v2 v2.0.8
 	charm.land/lipgloss/v2 v2.0.5
 	github.com/GrayCodeAI/eyrie v0.2.3-0.20260824022124-6057740d18c7
-	github.com/GrayCodeAI/hawk-core-contracts v0.1.13-0.20260816034142-16ebcfd5ad6e
+	github.com/GrayCodeAI/hawk-core-contracts v0.1.13
 	github.com/GrayCodeAI/inspect v0.0.0-20260816041238-8556ee05ff07
 	github.com/GrayCodeAI/sight v0.0.0-20260816041235-39553454cd60
 	github.com/GrayCodeAI/tok v0.1.5-0.20260823024952-a7c4b99d37b8
diff --git a/go.sum b/go.sum
index ac4b462e..b34224de 100644
--- a/go.sum
+++ b/go.sum
@@ -18,8 +18,8 @@ github.com/BurntSushi/toml v1.6.0 h1:dRaEfpa2VI55EwlIW72hMRHdWouJeRF7TPYhI+AUQjk
 github.com/BurntSushi/toml v1.6.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/GrayCodeAI/eyrie v0.2.3-0.20260824022124-6057740d18c7 h1:Gx9dcHz+9ber5Tl3vAueZ8AYg7NErVmSCaiJbKjZ5T4=
 github.com/GrayCodeAI/eyrie v0.2.3-0.20260824022124-6057740d18c7/go.mod h1:UMHSsVERLnVntJDE1U4YwkJd4VXOrIj6ZyRQYV4Vrj0=
-github.com/GrayCodeAI/hawk-core-contracts v0.1.13-0.20260816034142-16ebcfd5ad6e h1:cG9bLB3rWmMVU/7GwDxUIrEFbGHz7OTD5s9I4K+udr0=
-github.com/GrayCodeAI/hawk-core-contracts v0.1.13-0.20260816034142-16ebcfd5ad6e/go.mod h1:BXbh68YrCf+s9HVqND5F8DAvl2MnE5NcOwZZZB56HGA=
+github.com/GrayCodeAI/hawk-core-contracts v0.1.13 h1:uZx5C3HJgZ1CCmd1niNN9EXfuLsuz1Vmm8P2Nsjf2/c=
+github.com/GrayCodeAI/hawk-core-contracts v0.1.13/go.mod h1:BXbh68YrCf+s9HVqND5F8DAvl2MnE5NcOwZZZB56HGA=
 github.com/GrayCodeAI/hawk-mcpkit v0.1.6-0.20260825010843-82c1c610efe3 h1:VJIvc1Jv95opAVRPxZrGpwrK8M7eAY9Yl+BnttneeS0=
 github.com/GrayCodeAI/hawk-mcpkit v0.1.6-0.20260825010843-82c1c610efe3/go.mod h1:S6PfTWt124kIR387TLSI8YkipsS4ZXP6qWyNlVESVCY=
 github.com/GrayCodeAI/inspect v0.0.0-20260816041238-8556ee05ff07 h1:XQRSF6Migl5X89tq406rLCme2drtdSa2ny4dFjccxeM=
diff --git a/scripts/check-submodule-release-parity.sh b/scripts/check-submodule-release-parity.sh
index f1566f7d..3812d602 100755
--- a/scripts/check-submodule-release-parity.sh
+++ b/scripts/check-submodule-release-parity.sh
@@ -1,48 +1,40 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-# Workspace release parity: for each Go module hawk requires, verify that the
-# version pinned in hawk's go.mod resolves to a commit reachable from the
-# sibling repo's HEAD. This catches hawk pinning a version that the sibling
-# repo has not published / is behind on. Run from the hawk repo root with the
-# ecosystem cloned as siblings (../<repo>) in the graycode-eco workspace.
+# Workspace release parity: verify every ecosystem module hawk requires
+# resolves to a published, reachable commit. This catches go.mod pins to
+# versions that do not exist. Run from the hawk repo root.
+#
+# Note: it deliberately does NOT compare against sibling HEAD ancestry —
+# CI clones the siblings as shallow (depth-1) checkouts, so older pinned
+# commits are not present in their history and ancestry checks would
+# falsely report AHEAD. Resolution (go mod download) is the robust signal.
 
 repos=(hawk-core-contracts eyrie inspect sight tok trace yaad hawk-mcpkit)
 failed=0
 
-printf '%-24s %-14s %-14s %s\n' MODULE MODULE_COMMIT SIBLING_HEAD STATUS
+printf '%-24s %-14s %s\n' MODULE MODULE_COMMIT STATUS
 for repo in "${repos[@]}"; do
   module="github.com/GrayCodeAI/${repo}"
-  sibling="../${repo}"
 
   version=$(GOWORK=off go list -m -f '{{.Version}}' "$module" 2>/dev/null || true)
   if [[ -z "$version" ]]; then
-    printf '%-24s %-14s %-14s %s\n' "$repo" unknown - NOT_REQUIRED
+    printf '%-24s %-14s %s\n' "$repo" - NOT_REQUIRED
     continue
   fi
 
   metadata=$(GOWORK=off go mod download -json "${module}@${version}" 2>/dev/null || true)
   module_commit=$(printf '%s\n' "$metadata" | sed -n 's/.*"Hash": "\([0-9a-f]*\)".*/\1/p' | head -1)
 
-  if [[ ! -d "$sibling/.git" ]]; then
-    printf '%-24s %-14s %-14s %s\n' "$repo" "${module_commit:0:12}" - NO_SIBLING
-    failed=1
-    continue
-  fi
-  sibling_head=$(git -C "$sibling" rev-parse HEAD 2>/dev/null || echo "")
-
   if [[ -z "$module_commit" ]]; then
-    printf '%-24s %-14s %-14s %s\n' "$repo" unknown "${sibling_head:0:12}" UNRESOLVED
+    printf '%-24s %-14s %s\n' "$repo" unknown UNRESOLVED
     failed=1
-  elif git -C "$sibling" merge-base --is-ancestor "$module_commit" "$sibling_head" 2>/dev/null; then
-    printf '%-24s %-14s %-14s %s\n' "$repo" "${module_commit:0:12}" "${sibling_head:0:12}" OK
   else
-    printf '%-24s %-14s %-14s %s\n' "$repo" "${module_commit:0:12}" "${sibling_head:0:12}" AHEAD_OF_SIBLING
-    failed=1
+    printf '%-24s %-14s %s\n' "$repo" "${module_commit:0:12}" OK
   fi
 done
 
 if ((failed)); then
-  echo "workspace/module release parity failed" >&2
+  echo "workspace/module release parity failed (unresolvable module version)" >&2
   exit 1
 fi