diff --git a/tests/api/admin_jobs.hurl b/tests/api/admin_jobs.hurl
index 76b22ccc..92464c9a 100644
--- a/tests/api/admin_jobs.hurl
+++ b/tests/api/admin_jobs.hurl
@@ -226,7 +226,7 @@ jsonpath "$.outcome.count" exists
 #           JobHandler) — snapshots the registry, filters names
 #           ending `_consistency`, sequentially triggers each.
 #           `outcome.count` = number of children dispatched (6 as
-#           of the copy_folder_ref_count fix: drives + folders +
+#           of the refcount_cascade fix: drives + folders +
 #           files + blobs + manifests + backend). `extra.per_check`
 #           carries a per-child outcome
 #           map. Batch itself always returns ok — child failures
@@ -245,7 +245,7 @@ jsonpath "$.outcome.extra.deep" == true
 jsonpath "$.outcome.extra.ok" == 6
 jsonpath "$.outcome.extra.err" == 0
 # per_check is keyed by child job name. `manifests_consistency` was added
-# by the copy_folder_ref_count fix — see docs/plan/derived-blobs.md and
+# by the refcount_cascade fix — see docs/plan/derived-blobs.md and
 # `[[bug_dual_refcount_divergence]]` for why the second counter needed
 # its own tenant. Auto-picked by `consistency_batch` via `.ends_with(
 # "_consistency")` (no explicit list in the batch service).
diff --git a/tests/api/copy_folder_ref_count.hurl b/tests/api/refcount_cascade.hurl
similarity index 98%
rename from tests/api/copy_folder_ref_count.hurl
rename to tests/api/refcount_cascade.hurl
index e445d0df..caa4b1ab 100644
--- a/tests/api/copy_folder_ref_count.hurl
+++ b/tests/api/refcount_cascade.hurl
@@ -12,10 +12,10 @@
 #
 # Covers two paths so the CDC boundary can't hide a regression:
 #
-#   1. Small file (`copy-ref-small.txt`) → single legacy whole-
+#   1. Small file (`refcount-cascade-small.txt`) → single legacy whole-
 #      file blob. `storage.blobs.ref_count` counted directly on
 #      the file's content hash.
-#   2. 2 MB file (`copy-ref-cdc.bin`) → FastCDC produces multiple
+#   2. 2 MB file (`refcount-cascade-cdc.bin`) → FastCDC produces multiple
 #      distinct chunks. Whole-file `content_hash` still resolves
 #      through the dedup API.
 #
@@ -42,7 +42,7 @@
 #
 # Run:
 #   hurl --variables-file tests/api/test.env --test \
-#        tests/api/copy_folder_ref_count.hurl
+#        tests/api/refcount_cascade.hurl
 # =============================================================
 
 
@@ -137,7 +137,7 @@ POST {{base_url}}/api/files/upload
 Authorization: Bearer {{token}}
 [MultipartFormData]
 folder_id: {{src_small_id}}
-file: file,fixtures/copy-ref-small.txt; text/plain
+file: file,fixtures/refcount-cascade-small.txt; text/plain
 
 HTTP 201
 [Captures]
@@ -378,7 +378,7 @@ POST {{base_url}}/api/files/upload
 Authorization: Bearer {{token}}
 [MultipartFormData]
 folder_id: {{src_cdc_id}}
-file: file,fixtures/copy-ref-cdc.bin; application/octet-stream
+file: file,fixtures/refcount-cascade-cdc.bin; application/octet-stream
 
 HTTP 201
 [Captures]
diff --git a/tests/api/copy_folder_ref_count_diag.sh b/tests/api/refcount_cascade_diag.sh
similarity index 96%
rename from tests/api/copy_folder_ref_count_diag.sh
rename to tests/api/refcount_cascade_diag.sh
index b3d1fe0d..df7918df 100755
--- a/tests/api/copy_folder_ref_count_diag.sh
+++ b/tests/api/refcount_cascade_diag.sh
@@ -1,8 +1,8 @@
 #!/usr/bin/env bash
 # =============================================================
-# copy_folder_ref_count.hurl — post-failure diagnostic
+# refcount_cascade.hurl — post-failure diagnostic
 # =============================================================
-# When `copy_folder_ref_count.hurl` asserts a specific
+# When `refcount_cascade.hurl` asserts a specific
 # `ref_count` value and the API returns something else, this
 # script inspects the two DB tables the API surface consults
 # to distinguish which side is broken:
@@ -61,7 +61,7 @@ CDC_HASH='fb1e63c28bb792e0f69cd16cd7595989f83c218cf70894e07d1f811ab1dc6f83'
 log() { echo "[ref_count-diag] $*"; }
 
 log "─────────────────────────────────────────────────────────"
-log "copy_folder_ref_count.hurl failed — running diagnostic."
+log "refcount_cascade.hurl failed — running diagnostic."
 log "Shows blob.ref_count AND manifest.ref_count side by side —"
 log "the API queries manifest first (dedup_service.rs:1543), so"
 log "if the two diverge, the API surface + auditor + on-disk"
@@ -135,7 +135,7 @@ log "  blob>A, manifest=A             → blob increment missed"
 log "  blob=A, manifest<A             → manifest increment missed"
 log "  Either column NULL             → row absent from that table"
 log ""
-log "The API surface (`/api/dedup/check/{hash}`) queries manifest"
+log "The API surface (GET /api/dedup/check/{hash}) queries manifest"
 log "FIRST — that's why hurl saw manifest_stored while auditor +"
 log "on-disk state ran off blob_stored."
 log "─────────────────────────────────────────────────────────"
diff --git a/tests/api/run.sh b/tests/api/run.sh
index b6fe9c22..f31a5bd7 100755
--- a/tests/api/run.sh
+++ b/tests/api/run.sh
@@ -235,8 +235,8 @@ hurl --variables-file "$API_DIR/test.env" --file-root "$REPO_ROOT/tests" --test
 # the diag first, THEN exits with hurl's failure code so CI still
 # reports the regression.
 if ! hurl --variables-file "$API_DIR/test.env" --file-root "$REPO_ROOT/tests" --test --jobs 1 \
-     "$API_DIR/copy_folder_ref_count.hurl"; then
-  bash "$API_DIR/copy_folder_ref_count_diag.sh" || true
+     "$API_DIR/refcount_cascade.hurl"; then
+  bash "$API_DIR/refcount_cascade_diag.sh" || true
   exit 1
 fi
 
diff --git a/tests/fixtures/copy-ref-cdc.bin b/tests/fixtures/refcount-cascade-cdc.bin
similarity index 100%
rename from tests/fixtures/copy-ref-cdc.bin
rename to tests/fixtures/refcount-cascade-cdc.bin
diff --git a/tests/fixtures/copy-ref-small.txt b/tests/fixtures/refcount-cascade-small.txt
similarity index 100%
rename from tests/fixtures/copy-ref-small.txt
rename to tests/fixtures/refcount-cascade-small.txt