diff --git a/.agents/skills/openclaw-qa-testing/SKILL.md b/.agents/skills/openclaw-qa-testing/SKILL.md
index 1391d7c8008..151634527ff 100644
--- a/.agents/skills/openclaw-qa-testing/SKILL.md
+++ b/.agents/skills/openclaw-qa-testing/SKILL.md
@@ -77,8 +77,8 @@ pnpm openclaw qa matrix --profile fast --fail-fast
 - `transport`, `media`, `e2ee-smoke`, `e2ee-deep`, `e2ee-cli`: sharded full
   Matrix coverage.
 - `QA-Lab - All Lanes` uses explicit `fast` Matrix on scheduled runs. Manual
-  dispatch keeps `matrix_profile=all` as the default and can shard full Matrix
-  with `matrix_profile=all` and `matrix_shards=true`.
+  dispatch keeps `matrix_profile=all` as the default and always shards that full
+  Matrix selection.
 
 ## QA credentials and 1Password
 
diff --git a/.agents/skills/openclaw-testing/SKILL.md b/.agents/skills/openclaw-testing/SKILL.md
index c57a1a90f21..16d7c3f098d 100644
--- a/.agents/skills/openclaw-testing/SKILL.md
+++ b/.agents/skills/openclaw-testing/SKILL.md
@@ -195,10 +195,10 @@ default is the fast release path. Use explicit profiles:
   window when paired with fast or sharded gates
 
 `QA-Lab - All Lanes` uses explicit fast Matrix on scheduled runs; manual
-dispatch keeps `matrix_profile=all` as the default and can shard full Matrix
-with `matrix_profile=all` and `matrix_shards=true`. `OpenClaw Release Checks`
-uses explicit fast Matrix; run the sharded all-lanes workflow when release
-investigation needs full Matrix media/E2EE inventory.
+dispatch keeps `matrix_profile=all` as the default and always shards that full
+Matrix selection. `OpenClaw Release Checks` uses explicit fast Matrix; run the
+all-lanes workflow when release investigation needs full Matrix media/E2EE
+inventory.
 
 ### Reusable Live/E2E Checks
 
diff --git a/.github/workflows/qa-live-transports-convex.yml b/.github/workflows/qa-live-transports-convex.yml
index a1b8865db84..9ff82805808 100644
--- a/.github/workflows/qa-live-transports-convex.yml
+++ b/.github/workflows/qa-live-transports-convex.yml
@@ -31,14 +31,6 @@ on:
           - e2ee-smoke
           - e2ee-deep
           - e2ee-cli
-      matrix_shards:
-        description: Shard matrix_profile=all into parallel Matrix profile jobs
-        required: false
-        default: "false"
-        type: choice
-        options:
-          - "false"
-          - "true"
 
 permissions:
   contents: read
@@ -220,7 +212,7 @@ jobs:
   run_live_matrix:
     name: Run Matrix live QA lane
     needs: [authorize_actor, validate_selected_ref]
-    if: ${{ !(github.event_name == 'workflow_dispatch' && inputs.matrix_profile == 'all' && inputs.matrix_shards == 'true') }}
+    if: ${{ !(github.event_name == 'workflow_dispatch' && inputs.matrix_profile == 'all') }}
     runs-on: blacksmith-32vcpu-ubuntu-2404
     timeout-minutes: 60
     environment: qa-live-shared
@@ -289,7 +281,7 @@ jobs:
   run_live_matrix_sharded:
     name: Run Matrix live QA lane (${{ matrix.profile }})
     needs: [authorize_actor, validate_selected_ref]
-    if: ${{ github.event_name == 'workflow_dispatch' && inputs.matrix_profile == 'all' && inputs.matrix_shards == 'true' }}
+    if: ${{ github.event_name == 'workflow_dispatch' && inputs.matrix_profile == 'all' }}
     runs-on: blacksmith-32vcpu-ubuntu-2404
     timeout-minutes: 60
     environment: qa-live-shared
diff --git a/docs/ci.md b/docs/ci.md
index b9f6dedf101..e5659bafd54 100644
--- a/docs/ci.md
+++ b/docs/ci.md
@@ -151,10 +151,10 @@ manual dispatch; it fans out the mock parity gate, live Matrix lane, and live
 Telegram and Discord lanes as parallel jobs. The live jobs use the
 `qa-live-shared` environment, and Telegram/Discord use Convex leases. Matrix
 uses `--profile fast --fail-fast` for scheduled and release gates while the CLI
-default and manual workflow input remain `all`; manual all-lanes dispatch can
-shard full Matrix coverage into `transport`, `media`, `e2ee-smoke`,
-`e2ee-deep`, and `e2ee-cli` jobs. `OpenClaw Release Checks` also runs the
-release-critical QA Lab lanes before release approval.
+default and manual workflow input remain `all`; manual `matrix_profile=all`
+dispatch always shards full Matrix coverage into `transport`, `media`,
+`e2ee-smoke`, `e2ee-deep`, and `e2ee-cli` jobs. `OpenClaw Release Checks` also
+runs the release-critical QA Lab lanes before release approval.
 
 The `Duplicate PRs After Merge` workflow is a manual maintainer workflow for
 post-land duplicate cleanup. It defaults to dry-run and only closes explicitly
diff --git a/docs/reference/RELEASING.md b/docs/reference/RELEASING.md
index 2fd88ac47ea..e3b8fc869b7 100644
--- a/docs/reference/RELEASING.md
+++ b/docs/reference/RELEASING.md
@@ -141,8 +141,8 @@ the maintainer-only release runbook.
   live Matrix profile and Telegram QA lane before release approval. The live
   lanes use the `qa-live-shared` environment; Telegram also uses Convex CI
   credential leases. Run the manual `QA-Lab - All Lanes` workflow with
-  `matrix_profile=all` and `matrix_shards=true` when you want full Matrix
-  transport, media, and E2EE inventory in parallel.
+  `matrix_profile=all` when you want full Matrix transport, media, and E2EE
+  inventory; the workflow always shards that full Matrix selection in parallel.
 - Cross-OS install and upgrade runtime validation is dispatched from the
   private caller workflow
   `openclaw/releases-private/.github/workflows/openclaw-cross-os-release-checks.yml`,