diff --git a/.github/workflows/scan.yml b/.github/workflows/scan.yml
index 5e84fda..3b1fd23 100644
--- a/.github/workflows/scan.yml
+++ b/.github/workflows/scan.yml
@@ -12,6 +12,17 @@ on:
       dotnet_version:
         type: string
         default: '10.0.x'
+      style_check:
+        description: 'Opt-in house style gate: fail when an em dash (U+2014) is introduced in the change set'
+        type: boolean
+        default: false
+    secrets:
+      DISCORD_WEBHOOK_URL:
+        description: 'Incoming Discord webhook the run summary is posted to. Optional: omit to skip the Discord post.'
+        required: false
+      ANTHROPIC_API_KEY:
+        description: 'Anthropic API key enabling the optional Claude PR review. Optional: omit to skip that step.'
+        required: false
 
 permissions:
   contents: read
@@ -24,24 +35,32 @@ jobs:
       GITLEAKS_VERSION: 8.24.3
     steps:
       - name: Checkout consumer repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
         with:
           fetch-depth: 0
 
+      # Check out SecureCheck at the SAME ref the consumer pinned (github.workflow_ref
+      # is "owner/repo/path@ref" for reusable workflows). Without this, a consumer
+      # pinning @v1.0.0 would get the v1.0.0 workflow but main-branch scripts.
+      - name: Resolve SecureCheck ref
+        id: scref
+        run: echo "ref=${GITHUB_WORKFLOW_REF##*@}" >> "$GITHUB_OUTPUT"
+
       - name: Checkout SecureCheck
-        uses: actions/checkout@v6
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
         with:
           repository: w1ck3ds0d4/SecureCheck
+          ref: ${{ steps.scref.outputs.ref }}
           path: .securecheck
           fetch-depth: 1
 
       - name: Set up Node.js
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
         with:
           node-version: ${{ inputs.node_version }}
 
       - name: Set up Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
         with:
           python-version: ${{ inputs.python_version }}
 
@@ -252,8 +271,12 @@ jobs:
           echo "duration=$(( $(date +%s) - T0 ))" >> "$GITHUB_OUTPUT"
           echo "jscpd clones: ${CLONES} (duplicated lines: ${COUNT})"
 
+      # Opt-in house-style gate (off by default). This is a personal authoring
+      # convention, not a security check, so consumers are never failed by it
+      # unless they explicitly set style_check: true on the caller.
       - name: Style check (no em-dashes introduced)
         id: em_dash
+        if: ${{ inputs.style_check }}
         run: |
           set -euo pipefail
           T0=$(date +%s)
diff --git a/README.md b/README.md
index 6b4810f..be0f8cb 100644
--- a/README.md
+++ b/README.md
@@ -47,10 +47,28 @@ permissions:
 
 jobs:
   scan:
-    uses: w1ck3ds0d4/SecureCheck/.github/workflows/scan.yml@main
-    secrets: inherit
+    uses: w1ck3ds0d4/SecureCheck/.github/workflows/scan.yml@v1
+    secrets:
+      DISCORD_WEBHOOK_URL: ${{ secrets.DISCORD_WEBHOOK_URL }}
+      ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}   # optional
 ```
 
+Pin `@v1` for the stable line (or `@main` for latest). The workflow checks out its own scripts at the **same ref you pin**, so a pinned caller is fully reproducible. Mapping the two secrets explicitly (rather than `secrets: inherit`) follows least privilege - only these two are ever passed; both are optional.
+
+### Inputs and secrets
+
+| Input | Default | Meaning |
+| --- | --- | --- |
+| `node_version` | `20` | Node version for ESLint / jscpd |
+| `python_version` | `3.11` | Python version for ruff |
+| `dotnet_version` | `10.0.x` | .NET SDK for `dotnet format` |
+| `style_check` | `false` | Opt-in house-style gate (fails on an introduced em dash); off by default |
+
+| Secret | Required | Used for |
+| --- | --- | --- |
+| `DISCORD_WEBHOOK_URL` | no | Posting the run summary embed; omit to skip the Discord post |
+| `ANTHROPIC_API_KEY` | no | The optional Claude PR review; omit to skip that step |
+
 ### Configure secrets
 
 Set the webhook secret on the consumer repo:
@@ -103,8 +121,9 @@ The reusable workflow accepts three optional inputs:
 ```yaml
 jobs:
   scan:
-    uses: w1ck3ds0d4/SecureCheck/.github/workflows/scan.yml@main
-    secrets: inherit
+    uses: w1ck3ds0d4/SecureCheck/.github/workflows/scan.yml@v1
+    secrets:
+      DISCORD_WEBHOOK_URL: ${{ secrets.DISCORD_WEBHOOK_URL }}
     with:
       node_version: '22'
       python_version: '3.12'
diff --git a/ROADMAP.md b/ROADMAP.md
index a167ab7..3db6f9b 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -10,8 +10,8 @@ output as artifacts.
 
 ## Current state
 
-Workflow is in production and consumed by DA-Task-Alert, RS3-Companion,
-GlassVault, GlassVault.tools, and others. Gitleaks 8.24.3, Semgrep `auto`,
+Workflow is in production and consumed across several private repositories.
+Gitleaks 8.24.3, Semgrep `auto`,
 Trivy, Claude Sonnet step (gated on `ANTHROPIC_API_KEY`). Discord severity
 coding (green clean / yellow findings / orange many findings / red gitleaks
 hit). Per-scanner JSON artifacts retained 14 days. PR heartbeat posts even