diff --git a/README.md b/README.md
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+++ b/README.md
@@ -70,6 +70,7 @@ You can use the "/plan" agent to turn the reports into actionable issues which c
 - [🛡️ AI Moderator](docs/ai-moderator.md) - Automatically detect and moderate spam, link spam, and AI-generated content
 - [🔍 Contribution Check](docs/contribution-check.md) - Regularly review batches of open PRs against contribution guidelines and create prioritized reports
 - [🤖 Repo Assist](docs/repo-assist.md) - Daily repository assistant that triages issues, fixes bugs, proposes improvements, and maintains activity summaries
+- [🔒 Sub-Issue Closer](docs/sub-issue-closer.md) - Automatically close parent issues when all their sub-issues are complete
 
 ## Meta-Workflows
 
diff --git a/docs/daily-malicious-code-scan.md b/docs/daily-malicious-code-scan.md
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--- a/docs/daily-malicious-code-scan.md
+++ b/docs/daily-malicious-code-scan.md
@@ -2,8 +2,6 @@
 
 > For an overview of all available workflows, see the [main README](../README.md).
 
-**Automatically review recent code changes for suspicious patterns indicating malicious activity or security regressions**
-
 The [Daily Malicious Code Scan workflow](../workflows/daily-malicious-code-scan.md?plain=1) examines files changed in the past 72 hours, searching for secret exfiltration, out-of-context code, suspicious network activity, system access patterns, obfuscation, and supply chain indicators. Findings appear as GitHub code-scanning alerts with threat scores and remediation recommendations.
 
 ## Installation
diff --git a/docs/sub-issue-closer.md b/docs/sub-issue-closer.md
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+# 🔒 Sub-Issue Closer
+
+> For an overview of all available workflows, see the [main README](../README.md).
+
+The [Sub-Issue Closer workflow](../workflows/sub-issue-closer.md?plain=1) automatically closes parent issues when all of their sub-issues have been completed, keeping your issue tracker clean and organized.
+
+## Installation
+
+```bash
+# Install the 'gh aw' extension
+gh extension install github/gh-aw
+
+# Add the workflow to your repository
+gh aw add-wizard githubnext/agentics/sub-issue-closer
+```
+
+This walks you through adding the workflow to your repository.
+
+You can start a run of this workflow immediately by running:
+
+```bash
+gh aw run sub-issue-closer
+```
+
+## What It Does
+
+The Sub-Issue Closer workflow runs daily and:
+
+1. **Scans Open Parent Issues** - Finds all open issues that have sub-issues (tracked issues)
+2. **Checks Completion** - Verifies whether all sub-issues are in a closed state
+3. **Closes Completed Parents** - Closes parent issues where every sub-issue is done
+4. **Recurses Up the Tree** - If closing a parent reveals its own parent is now complete, that parent is closed too
+5. **Adds Explanatory Comments** - Posts a comment on each closed issue explaining the automatic closure
+
+## How It Works
+
+````mermaid
+graph LR
+    A[Find Open Parent Issues] --> B[Check Sub-Issue Status]
+    B --> C{All Sub-Issues Closed?}
+    C -->|Yes| D[Close Parent Issue]
+    D --> E[Add Closure Comment]
+    E --> F{Parent Has Its Own Parent?}
+    F -->|Yes| B
+    F -->|No| G[Done]
+    C -->|No| H[Skip - Keep Open]
+````
+
+### Recursive Closure
+
+The workflow processes issue trees bottom-up. If you have a hierarchy like:
+
+```
+Epic #1: "Launch v2.0"
+  ├── Feature #2: "User auth" (all sub-issues closed)
+  │     ├── #3: "Login page" [CLOSED]
+  │     └── #4: "Logout" [CLOSED]
+  └── Feature #5: "Dashboard" (sub-issue still open)
+        └── #6: "Chart widget" [OPEN]
+```
+
+The workflow would close Feature #2 (all sub-issues done), then check if Epic #1 can be closed too (it cannot, because Feature #5 is still open).
+
+## What It Reads from GitHub
+
+- Open issues and their sub-issue relationships
+- Sub-issue states (open/closed)
+
+## What It Creates
+
+- Closes parent issues via the `update-issue` safe output
+- Adds closure comments via the `add-comment` safe output
+
+## When It Runs
+
+- **Daily** (automatic fuzzy scheduling)
+- **Manually** via workflow_dispatch
+
+## Permissions Required
+
+- `contents: read` - To read repository contents
+- `issues: read` - To query issue and sub-issue status
+
+## Configuration
+
+The workflow works out of the box for any repository using GitHub's sub-issues feature. You can edit it to customize:
+- Maximum issues closed per run (default: 20)
+- The closure comment message
+- Whether to process recursively up the tree
+
+After editing, run `gh aw compile` to apply your changes.
+
+## Benefits
+
+1. **Automatic housekeeping** - Issue trackers stay clean without manual intervention
+2. **Works recursively** - Cascades up through multi-level issue hierarchies
+3. **Transparent** - Always explains why an issue was closed with a comment
+4. **Conservative** - Only closes when 100% of sub-issues are done; skips on any doubt
+5. **Complements event-driven workflows** - Catches cases that may have been missed by real-time triggers
+
+## Example Output
+
+When the workflow closes a parent issue, it posts a comment like:
+
+> 🎉 **Automatically closed by Sub-Issue Closer**
+>
+> All sub-issues have been completed. This parent issue is now closed automatically.
+>
+> **Sub-issues status:** 4/4 closed (100%)
+
+## Source
+
+This workflow is adapted from Peli's Agent Factory. Read more: [Meet the Workflows: Organization](https://github.github.io/gh-aw/blog/2026-01-13-meet-the-workflows-organization/)
diff --git a/workflows/sub-issue-closer.md b/workflows/sub-issue-closer.md
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+---
+description: Scheduled workflow that recursively closes parent issues when all sub-issues are 100% complete
+name: Sub-Issue Closer
+on:
+  schedule: daily
+  workflow_dispatch:
+permissions:
+  contents: read
+  issues: read
+engine: copilot
+strict: true
+network:
+  allowed:
+    - defaults
+tools:
+  github:
+    toolsets:
+      - issues
+safe-outputs:
+  update-issue:
+    status:
+    target: "*"
+    max: 20
+  add-comment:
+    target: "*"
+    max: 20
+timeout-minutes: 15
+---
+
+# Sub-Issue Closer 🔒
+
+You are an intelligent agent that automatically closes parent issues when all their sub-issues are 100% complete.
+
+## Task
+
+Recursively process GitHub issues in repository **${{ github.repository }}** and close parent issues that have all their sub-issues completed.
+
+## Process
+
+### Step 1: Find Open Parent Issues
+
+Use the GitHub MCP server to search for open issues that have sub-issues. Look for:
+- Issues with state = "OPEN"
+- Issues that have tracked issues (sub-issues)
+- Issues that appear to be tracking/parent issues based on their structure
+
+You can use the `search_issues` tool to find issues with sub-issues, or use `list_issues` to get all open issues and filter those with sub-issues.
+
+### Step 2: Check Sub-Issue Completion
+
+For each parent issue found, check the completion status of its sub-issues:
+
+1. Get the sub-issues for the parent issue using the GitHub API
+2. Check if ALL sub-issues are in state "CLOSED"
+3. Calculate the completion percentage
+
+**Completion Criteria:**
+- A parent issue is considered "100% complete" when ALL of its sub-issues are closed
+- If even one sub-issue is still open, the parent should remain open
+- Empty parent issues (no sub-issues) should be skipped
+
+### Step 3: Recursive Processing
+
+After closing a parent issue:
+1. Check if that issue itself is a sub-issue of another parent
+2. If it has a parent issue, check that parent's completion status
+3. Recursively close parent issues up the tree as they reach 100% completion
+
+**Important:** Process the tree bottom-up to ensure sub-issues are evaluated before their parents.
+
+### Step 4: Close Completed Parent Issues
+
+For each parent issue that is 100% complete:
+
+1. **Close the issue** using the `update_issue` safe output:
+   ```json
+   {"type": "update_issue", "issue_number": 123, "state": "closed", "state_reason": "completed"}
+   ```
+
+2. **Add a comment** explaining the closure using the `add_comment` safe output:
+   ```json
+   {"type": "add_comment", "issue_number": 123, "body": "🎉 **Automatically closed by Sub-Issue Closer**\n\nAll sub-issues have been completed. This parent issue is now closed automatically.\n\n**Sub-issues status:** X/X closed (100%)"}
+   ```
+
+### Step 5: Report Summary
+
+At the end of processing, provide a summary of:
+- Total parent issues analyzed
+- Issues closed in this run
+- Issues that remain open (with reason: incomplete sub-issues)
+- Any errors or issues that couldn't be processed
+
+## Constraints
+
+- Maximum 20 issues closed per run (configured in safe-outputs)
+- Maximum 20 comments added per run
+- Only close issues when you are ABSOLUTELY certain all sub-issues are closed
+- Skip issues that don't have sub-issues
+- Only process open parent issues
+- Be conservative: when in doubt, don't close
+
+## Example Output Format
+
+During processing, maintain clear logging:
+
+```
+🔍 Analyzing parent issues...
+
+📋 Issue #42: "Feature: Add dark mode"
+   State: OPEN
+   Sub-issues: 5 total
+   - #43: "Design dark mode colors" [CLOSED]
+   - #44: "Implement dark mode toggle" [CLOSED]
+   - #45: "Add dark mode to settings" [CLOSED]
+   - #46: "Test dark mode" [CLOSED]
+   - #47: "Document dark mode" [CLOSED]
+   Status: 5/5 closed (100%)
+   ✅ All sub-issues complete - CLOSING
+
+📋 Issue #50: "Feature: User authentication"
+   State: OPEN
+   Sub-issues: 3 total
+   - #51: "Add login page" [CLOSED]
+   - #52: "Add logout functionality" [OPEN]
+   - #53: "Add password reset" [CLOSED]
+   Status: 2/3 closed (67%)
+   ⏸️  Incomplete - keeping open
+
+✅ Summary:
+   - Parent issues analyzed: 2
+   - Issues closed: 1
+   - Issues remaining open: 1
+```
+
+## Important Notes
+
+- This is a scheduled workflow that runs daily
+- It complements event-triggered auto-close workflows by catching cases that were missed
+- Use the GitHub MCP server tools to query issues and their relationships
+- Be careful with recursive processing to avoid infinite loops
+- Always verify the completion status before closing an issue
+- Add clear, informative comments when closing issues for transparency