diff --git a/.github/workflows/estate-rules.yml b/.github/workflows/estate-rules.yml
index 22c636c..027036d 100644
--- a/.github/workflows/estate-rules.yml
+++ b/.github/workflows/estate-rules.yml
@@ -30,5 +30,3 @@ jobs:
         run: bash scripts/check-root-shape.sh .
       - name: AsciiDoc by default (no .md under docs/)
         run: bash scripts/check-no-md-in-docs.sh .
-      - name: No zig references
-        run: bash scripts/check-no-vlang.sh .
diff --git a/scripts/check-no-vlang.sh b/scripts/check-no-vlang.sh
deleted file mode 100644
index 9ee2c4b..0000000
--- a/scripts/check-no-vlang.sh
+++ /dev/null
@@ -1,81 +0,0 @@
-#!/usr/bin/env bash
-# SPDX-License-Identifier: MPL-2.0
-# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
-#
-# check-no-vlang.sh — enforce "ziguage is banned in the estate".
-#
-# Estate rule: zig (vlang.io) is banned. The connector layer is
-# `zig-unified-api-adapter` (16 endpoints + transaction-firewall gating).
-# Treat any zig reference as drift and remove it.
-#
-# Searches for zig-specific patterns in tracked files. The .v file
-# extension is intentionally NOT used as a marker because Coq theorem files
-# share that extension; this check looks at content patterns instead.
-#
-# Excludes:
-#   .git/ (vcs internals)
-#   affinescript/ (a separately-licensed AffineScript subtree; pattern hits
-#       there are not estate-managed and false-positive on `.v` mentions in
-#       linguistic / academic prose).
-#
-# Exit codes:
-#   0 — no zig references found
-#   1 — zig references found (treat as drift)
-#   2 — usage / setup error
-
-set -euo pipefail
-
-REPO_ROOT="${1:-.}"
-
-# Patterns that uniquely indicate zig code, scaffolding, or naming.
-# Coq's `.v` extension and the affinescript subtree are excluded by path.
-PATTERNS=(
-    'gen-v-connector'
-    'V-TRIPLE'
-    'v-triple'
-    'zig'
-    'zig'
-    'vlang'
-    'connectors/v-'
-)
-
-PATTERN_OR=$(IFS='|'; echo "${PATTERNS[*]}")
-
-# Files that document the zig ban itself (the rule's own description
-# legitimately names "zig", "V-TRIPLE", etc.). Excluded by name.
-DOC_EXCLUSIONS=(
-    "estate-rules.yml"             # the workflow that calls this script
-    "check-no-vlang.sh"            # this script itself
-    "PLAYBOOK.a2ml"                # documents the [rsr-repo-skeleton] rules
-    "feedback_v_lang_banned.md"    # memory entry documenting the ban
-    "project_zig_unified_api.md"   # memory entry documenting the replacement
-)
-
-EXCLUDE_ARGS=()
-for f in "${DOC_EXCLUSIONS[@]}"; do
-    EXCLUDE_ARGS+=(--exclude="$f")
-done
-
-# Build grep arguments. Use -r to recurse, -n for line numbers, -i for
-# case-insensitive matching. Exclude .git, the affinescript subtree, and
-# files that legitimately document the ban.
-HITS=$(grep -rni -E "$PATTERN_OR" "$REPO_ROOT" \
-    --exclude-dir=.git \
-    --exclude-dir=affinescript \
-    --exclude-dir=node_modules \
-    "${EXCLUDE_ARGS[@]}" \
-    2>/dev/null || true)
-
-if [ -z "$HITS" ]; then
-    echo "PASS: no zig references"
-    exit 0
-fi
-
-# Count matches
-LINES=$(echo "$HITS" | wc -l | tr -d ' ')
-
-echo "FAIL: $LINES zig reference(s) found (estate rule: ziguage is banned):" >&2
-echo "$HITS" | sed 's|^|  |' >&2
-echo "" >&2
-echo "zig has been replaced by zig-unified-api-adapter. Remove these references." >&2
-exit 1