diff --git a/.github/workflow-templates/org-bot-caller.properties.json b/.github/workflow-templates/org-bot-caller.properties.json
new file mode 100644
index 0000000..8c2fec6
--- /dev/null
+++ b/.github/workflow-templates/org-bot-caller.properties.json
@@ -0,0 +1,11 @@
+{
+  "name": "Organization Issue/PR Bot Caller",
+  "description": "Calls the centralized th30d4y org bot workflow for new issues and pull requests.",
+  "iconName": "octicon-comment-discussion",
+  "categories": [
+    "Automation"
+  ],
+  "filePatterns": [
+    ".*"
+  ]
+}
diff --git a/.github/workflow-templates/org-bot-caller.yml b/.github/workflow-templates/org-bot-caller.yml
new file mode 100644
index 0000000..2bd7cba
--- /dev/null
+++ b/.github/workflow-templates/org-bot-caller.yml
@@ -0,0 +1,22 @@
+name: Organization Issue/PR Bot Caller
+
+on:
+  issues:
+    types: [opened]
+  pull_request:
+    types: [opened]
+
+permissions:
+  contents: read
+  issues: write
+  pull-requests: write
+
+jobs:
+  org-bot:
+    uses: th30d4y/.github/.github/workflows/org-bot.yml@main
+    with:
+      event_type: ${{ github.event_name == 'issues' && 'Issue' || 'Pull Request' }}
+      number: ${{ github.event.issue.number || github.event.pull_request.number }}
+      title: ${{ github.event.issue.title || github.event.pull_request.title }}
+      url: ${{ github.event.issue.html_url || github.event.pull_request.html_url }}
+    secrets: inherit
diff --git a/.github/workflows/org-bot.yml b/.github/workflows/org-bot.yml
index 1080faa..44f63a9 100644
--- a/.github/workflows/org-bot.yml
+++ b/.github/workflows/org-bot.yml
@@ -1,6 +1,24 @@
 name: Organization Issue/PR Bot
 
 on:
+  workflow_call:
+    inputs:
+      event_type:
+        description: Issue or Pull Request
+        required: false
+        type: string
+      number:
+        description: Issue or pull request number
+        required: false
+        type: number
+      title:
+        description: Issue or pull request title (optional; falls back to "(no title)")
+        required: false
+        type: string
+      url:
+        description: Issue or pull request URL
+        required: false
+        type: string
   issues:
     types: [opened]
   pull_request:
@@ -22,6 +40,24 @@ jobs:
           script: |
             try {
               const payload = context.payload;
+              if (context.eventName === "workflow_call") {
+                const eventType = ${{ toJson(inputs.event_type) }};
+                const number = ${{ toJson(inputs.number) }};
+                const title = ${{ toJson(inputs.title) }};
+                const url = ${{ toJson(inputs.url) }};
+
+                if (!eventType || number == null || !url) {
+                  core.setFailed("workflow_call requires event_type, number, and url inputs.");
+                  return;
+                }
+
+                core.setOutput("type", eventType);
+                core.setOutput("number", String(number));
+                core.setOutput("title", title || "(no title)");
+                core.setOutput("url", url);
+                return;
+              }
+
               if (context.eventName === "issues" && payload.issue) {
                 core.setOutput("type", "Issue");
                 core.setOutput("number", String(payload.issue.number));
@@ -47,15 +83,20 @@ jobs:
         uses: actions/github-script@v7
         with:
           script: |
-            const message =
-              context.eventName === "issues"
-                ? "👋 Thank you for opening this issue. We will review it and get back to you soon. — th30d4y"
-                : "👋 Hello! Thanks for your contribution. We will review this and get back to you as soon as possible. — th30d4y";
-            const issueNumber = context.issue.number;
+            const eventType = ${{ toJson(steps.metadata.outputs.type) }};
+            const message = eventType === "Issue"
+              ? "👋 Thank you for opening this issue. We will review it and get back to you soon. — th30d4y"
+              : "👋 Hello! Thanks for your contribution. We will review this and get back to you as soon as possible. — th30d4y";
+            const issueNumber = Number(${{ toJson(steps.metadata.outputs.number) }});
             const owner = context.repo.owner;
             const repo = context.repo.repo;
 
             try {
+              if (Number.isNaN(issueNumber) || issueNumber <= 0) {
+                core.setFailed("Unable to determine issue/pull request number for comment.");
+                return;
+              }
+
               const comments = await github.paginate(github.rest.issues.listComments, {
                 owner,
                 repo,
diff --git a/README.md b/README.md
index 5a86cfe..3776803 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,66 @@
 # .github
+
+Organization-wide GitHub defaults and shared automation.
+
+## Organization Issue/PR Bot rollout
+
+This repository now provides:
+
+- A centralized reusable workflow: `.github/workflows/org-bot.yml`
+- A workflow template for other repositories: `.github/workflow-templates/org-bot-caller.yml`
+
+### 1) Configure organization secrets
+
+In **Organization Settings → Secrets and variables → Actions**, create:
+
+- `EMAIL_USER`
+- `EMAIL_PASS`
+
+Grant both secrets to all repositories that should use the bot.
+
+### 2) Enable in each repository
+
+In each target repository, add the caller workflow from template:
+
+- `.github/workflows/org-bot-caller.yml`
+
+Or copy this minimum caller workflow:
+
+```yml
+name: Organization Issue/PR Bot Caller
+
+on:
+  issues:
+    types: [opened]
+  pull_request:
+    types: [opened]
+
+permissions:
+  contents: read
+  issues: write
+  pull-requests: write
+
+jobs:
+  org-bot:
+    uses: th30d4y/.github/.github/workflows/org-bot.yml@main
+    with:
+      event_type: ${{ github.event_name == 'issues' && 'Issue' || 'Pull Request' }}
+      number: ${{ github.event.issue.number || github.event.pull_request.number }}
+      title: ${{ github.event.issue.title || github.event.pull_request.title }}
+      url: ${{ github.event.issue.html_url || github.event.pull_request.html_url }}
+    secrets: inherit
+```
+
+> Tip: once you publish a stable tag for this workflow (for example `v1`), prefer `@v1` instead of `@main` so repositories get controlled, versioned updates instead of inheriting breaking changes immediately.
+
+### 3) Validate and roll out
+
+1. Enable on 1–2 repositories first.
+2. Open a test issue and a test PR to confirm:
+   - welcome comment is posted
+   - owner email is sent
+3. Roll out to remaining repositories.
+
+### 4) Optional enforcement
+
+If your GitHub plan supports required workflows/rulesets, enforce the caller workflow org-wide. Otherwise, each repository must include the caller workflow file.