diff --git a/packages/mosaic/framework/tools/quality/scripts/check-test-enumeration.sh b/packages/mosaic/framework/tools/quality/scripts/check-test-enumeration.sh
index 0bab4467..66749ef3 100755
--- a/packages/mosaic/framework/tools/quality/scripts/check-test-enumeration.sh
+++ b/packages/mosaic/framework/tools/quality/scripts/check-test-enumeration.sh
@@ -57,12 +57,18 @@ done
 PKG_JSON="$ROOT/packages/mosaic/package.json"
 CI_YML="$ROOT/.woodpecker/ci.yml"
 TOOLS_DIR="$ROOT/packages/mosaic/framework/tools"
+# The population is "basename matches *test*.sh", which is not a tools/ property.
+# Direction A used to scan TOOLS_DIR, so a suite in a SIBLING of tools/ was invisible
+# to the guard whose whole purpose is making that impossible — measured on origin/next
+# as systemd/user/test-fleet-units.sh, on no CI surface and in no exclusion (@scooby).
+# Scan the framework, so the scanned surface matches the claimed property.
+FRAMEWORK_DIR="$ROOT/packages/mosaic/framework"
 EXCLUSIONS="$TOOLS_DIR/quality/test-enumeration-exclusions.txt"
 
 for f in "$PKG_JSON" "$CI_YML"; do
     [[ -f "$f" ]] || { echo "FAIL: required surface file missing: $f" >&2; exit 2; }
 done
-[[ -d "$TOOLS_DIR" ]] || { echo "FAIL: tools dir missing: $TOOLS_DIR" >&2; exit 2; }
+[[ -d "$FRAMEWORK_DIR" ]] || { echo "FAIL: framework dir missing: $FRAMEWORK_DIR" >&2; exit 2; }
 
 fail_count=0
 fail() { printf 'FAIL  %s\n' "$1"; fail_count=$(( fail_count + 1 )); }
@@ -90,7 +96,7 @@ print("\n".join(seen))
 PY
 )
 
-# --- Surface 2: ci.yml, every framework/tools token wherever it appears ------
+# --- Surface 2: ci.yml, every framework token wherever it appears ------------
 # Comment lines (first non-whitespace char is #) are skipped BEFORE matching:
 # commenting an invocation out is the most common way a suite actually gets
 # disabled, and a raw-text regex would keep calling it enumerated (F1, 20155 on
@@ -98,7 +104,7 @@ PY
 # in a TRAILING comment on a live line still matches; no such line exists today
 # and full fidelity would need a YAML parser the CI image does not ship.
 mapfile -t S2 < <(grep -vE '^[[:space:]]*#' "$CI_YML" \
-    | grep -oE 'packages/mosaic/framework/tools/[A-Za-z0-9_./-]+\.(sh|py)' | sort -u)
+    | grep -oE 'packages/mosaic/framework/[A-Za-z0-9_./-]+\.(sh|py)' | sort -u)
 
 # --- Union, and its population-restricted view -------------------------------
 declare -A ENUM=() ENUM_POP=()
@@ -154,7 +160,7 @@ while IFS= read -r f; do
         fail "UNENUMERATED: '$rel' exists on disk but is neither enumerated on any CI surface nor signed in the exclusions file"
         unlisted=$(( unlisted + 1 ))
     fi
-done < <(find "$TOOLS_DIR" -type f -name '*.sh' | sort)
+done < <(find "$FRAMEWORK_DIR" -type f -name '*.sh' | sort)
 
 if (( fail_count > 0 )); then
     printf 'enumeration guard: %d failure(s) — population %d, enumerated (in-population) %d, excluded %d\n' \
diff --git a/packages/mosaic/framework/tools/quality/scripts/test-check-test-enumeration.sh b/packages/mosaic/framework/tools/quality/scripts/test-check-test-enumeration.sh
index 05170632..420988a1 100755
--- a/packages/mosaic/framework/tools/quality/scripts/test-check-test-enumeration.sh
+++ b/packages/mosaic/framework/tools/quality/scripts/test-check-test-enumeration.sh
@@ -161,6 +161,34 @@ R="$(fixture n7)"
 excl "$R" "packages/mosaic/framework/tools/quality/scripts/verify-thing.sh | not a suite but signing it anyway"
 expect NEEDLE 1 "out-of-population exclusion rejected" --out "EXCLUSION OUTSIDE POPULATION" -- "$R"
 
+echo "=== n9/c5: a suite in a SIBLING of tools/ is in the population (@scooby, 2026-08-16) ==="
+# Every other fixture here lives under framework/tools/, which is how the guard came to
+# scan TOOLS_DIR while claiming a population defined by basename alone. The real specimen
+# was framework/systemd/user/test-fleet-units.sh: a member by the guard's own definition,
+# on no CI surface, in no exclusion, and structurally unreachable by the scan. n9 is that
+# blind spot; without it a future narrowing back to TOOLS_DIR passes all fourteen needles.
+R="$(fixture n9)"
+mkdir -p "$R/packages/mosaic/framework/systemd/user"
+printf '#!/usr/bin/env bash\nexit 0\n' > "$R/packages/mosaic/framework/systemd/user/test-sibling.sh"
+expect NEEDLE 1 "suite outside tools/ but inside framework/ is enumerable, not invisible" \
+    --out "UNENUMERATED: 'packages/mosaic/framework/systemd/user/test-sibling.sh'" -- "$R"
+# c5 is why the S2 regex had to widen WITH the scan: detecting the file is useless if the
+# fix for it cannot be recognised. Enumerating a sibling-directory suite on ci.yml must
+# clear the finding — under a tools/-scoped S2 it stays UNENUMERATED forever and the only
+# reachable disposition is an exclusion.
+#
+# Measured scope of what c5 catches, because it is narrower than it looks: against the
+# ORIGINAL guard (both hunks absent) c5 passes vacuously — the scan never sees the file
+# and S2 never matches it, so nothing is asserted. It discriminates against the HALF-patch
+# — scan widened, S2 narrowed back — which is the realistic future regression, and it was
+# confirmed red in exactly that state. n9 is the one that fails on the original.
+R="$(fixture c5)"
+mkdir -p "$R/packages/mosaic/framework/systemd/user"
+printf '#!/usr/bin/env bash\nexit 0\n' > "$R/packages/mosaic/framework/systemd/user/test-sibling.sh"
+printf '      - bash packages/mosaic/framework/systemd/user/test-sibling.sh\n' >> "$R/.woodpecker/ci.yml"
+expect CONTROL 0 "enumerating a sibling-directory suite on ci.yml actually clears it" \
+    --out "enumeration guard: OK" -- "$R"
+
 echo
 printf 'enumeration-guard needles: %d passed, %d failed\n' "$PASS" "$FAIL"
 (( FAIL == 0 ))
diff --git a/packages/mosaic/package.json b/packages/mosaic/package.json
index 98cf494f..48336007 100644
--- a/packages/mosaic/package.json
+++ b/packages/mosaic/package.json
@@ -25,7 +25,7 @@
     "lint": "eslint src",
     "typecheck": "tsc --noEmit",
     "test": "vitest run --passWithNoTests && pnpm run test:framework-shell",
-    "test:framework-shell": "bash framework/tools/quality/scripts/check-test-enumeration.sh && bash framework/tools/quality/scripts/test-check-test-enumeration.sh && python3 src/lease-broker/daemon_deadline_unittest.py && python3 src/lease-broker/normative_fragments_unittest.py && python3 src/lease-broker/promotion_binding_unittest.py && python3 src/lease-broker/promotion_trigger_unittest.py && python3 src/lease-broker/receipt_challenge_unittest.py && python3 src/lease-broker/context_recovery_unittest.py && python3 src/lease-broker/recovery_runtime_unittest.py && python3 src/lease-broker/recovery_b1_adversarial_unittest.py && python3 src/lease-broker/receipt_observer_client_unittest.py && python3 src/lease-broker/invariant_r_unittest.py && python3 src/lease-broker/framework_skill_portability_unittest.py && python3 src/mutator-gate/runtime_tools_unittest.py && python3 src/mutator-gate/runtime_launch_guard_unittest.py && python3 src/mutator-gate/version_coupling_unittest.py && python3 framework/tools/lease-broker/check-runtime-launches.py --root ../.. && bash framework/tools/codex/test-pr-diff-context.sh && bash framework/tools/qa/test-deps-preflight.sh && bash framework/tools/git/test-pr-review-gitea-comment.sh && bash framework/tools/git/test-pr-review-repo-host-override.sh && bash framework/tools/git/test-ci-queue-wait-branch-absent.sh && bash framework/tools/git/test-ci-queue-wait-tristate.sh && bash framework/tools/git/test-ci-queue-wait-github-checks.sh && bash framework/tools/git/test-pr-merge-queue-branch.sh && bash framework/tools/git/test-pr-merge-head-pin.sh && bash framework/tools/git/test-pr-merge-message-field.sh && bash framework/tools/git/test-git-credential-mosaic.sh && bash framework/tools/git/test-gitea-token-identity.sh && bash framework/tools/woodpecker/test-terminal-green-contract.sh && bash framework/tools/_scripts/test-install-ordering-guard.sh && bash framework/tools/_scripts/test-mosaic-init-rce.sh && bash framework/tools/tmux/agent-send.test.sh && bash framework/tools/wake/test-wake-store-ack.sh && bash framework/tools/wake/test-wake-store-enqueue-race.sh && bash framework/tools/wake/test-wake-digest-hmac.sh && bash framework/tools/wake/test-wake-digest-quarantine.sh && bash framework/tools/wake/test-wake-detector.sh && bash framework/tools/wake/test-wake-fn-oracle.sh && bash framework/tools/wake/test-wake-reconcile.sh && bash framework/tools/wake/test-wake-beacon.sh && bash framework/tools/wake/test-wake-preimage.sh && bash framework/tools/wake/test-wake-install.sh && bash framework/tools/fleet/test-start-agent-session.sh && bash framework/tools/glpi/test-list-http-status.sh && bash framework/tools/orchestrator/test-board-roll.sh && bash framework/tools/woodpecker/test-ci-wait-exit-matrix.sh && bash framework/tools/_scripts/test-fleet-transport-check.sh"
+    "test:framework-shell": "bash framework/tools/quality/scripts/check-test-enumeration.sh && bash framework/tools/quality/scripts/test-check-test-enumeration.sh && python3 src/lease-broker/daemon_deadline_unittest.py && python3 src/lease-broker/normative_fragments_unittest.py && python3 src/lease-broker/promotion_binding_unittest.py && python3 src/lease-broker/promotion_trigger_unittest.py && python3 src/lease-broker/receipt_challenge_unittest.py && python3 src/lease-broker/context_recovery_unittest.py && python3 src/lease-broker/recovery_runtime_unittest.py && python3 src/lease-broker/recovery_b1_adversarial_unittest.py && python3 src/lease-broker/receipt_observer_client_unittest.py && python3 src/lease-broker/invariant_r_unittest.py && python3 src/lease-broker/framework_skill_portability_unittest.py && python3 src/mutator-gate/runtime_tools_unittest.py && python3 src/mutator-gate/runtime_launch_guard_unittest.py && python3 src/mutator-gate/version_coupling_unittest.py && python3 framework/tools/lease-broker/check-runtime-launches.py --root ../.. && bash framework/tools/codex/test-pr-diff-context.sh && bash framework/tools/qa/test-deps-preflight.sh && bash framework/tools/git/test-pr-review-gitea-comment.sh && bash framework/tools/git/test-pr-review-repo-host-override.sh && bash framework/tools/git/test-ci-queue-wait-branch-absent.sh && bash framework/tools/git/test-ci-queue-wait-tristate.sh && bash framework/tools/git/test-ci-queue-wait-github-checks.sh && bash framework/tools/git/test-pr-merge-queue-branch.sh && bash framework/tools/git/test-pr-merge-head-pin.sh && bash framework/tools/git/test-pr-merge-message-field.sh && bash framework/tools/git/test-git-credential-mosaic.sh && bash framework/tools/git/test-gitea-token-identity.sh && bash framework/tools/woodpecker/test-terminal-green-contract.sh && bash framework/tools/_scripts/test-install-ordering-guard.sh && bash framework/tools/_scripts/test-mosaic-init-rce.sh && bash framework/tools/tmux/agent-send.test.sh && bash framework/tools/wake/test-wake-store-ack.sh && bash framework/tools/wake/test-wake-store-enqueue-race.sh && bash framework/tools/wake/test-wake-digest-hmac.sh && bash framework/tools/wake/test-wake-digest-quarantine.sh && bash framework/tools/wake/test-wake-detector.sh && bash framework/tools/wake/test-wake-fn-oracle.sh && bash framework/tools/wake/test-wake-reconcile.sh && bash framework/tools/wake/test-wake-beacon.sh && bash framework/tools/wake/test-wake-preimage.sh && bash framework/tools/wake/test-wake-install.sh && bash framework/tools/fleet/test-start-agent-session.sh && bash framework/tools/glpi/test-list-http-status.sh && bash framework/tools/orchestrator/test-board-roll.sh && bash framework/tools/woodpecker/test-ci-wait-exit-matrix.sh && bash framework/tools/_scripts/test-fleet-transport-check.sh && bash framework/systemd/user/test-fleet-units.sh"
   },
   "dependencies": {
     "@mosaicstack/brain": "workspace:*",