📚 docs: Add Skills, Subagents, and CloudFront References (#13096)

.env.example

@@ -679,6 +679,9 @@ AWS_BUCKET_NAME=
 # Required for path-style S3-compatible providers (MinIO, Hetzner, Backblaze B2, etc.)
 # that don't support virtual-hosted-style URLs (bucket.endpoint). Not needed for AWS S3.
 # AWS_FORCE_PATH_STYLE=false
+# Required for CloudFront signed cookies and signed download URLs
+# CLOUDFRONT_KEY_PAIR_ID=
+# CLOUDFRONT_PRIVATE_KEY=
 
 #========================#
 # Azure Blob Storage     #

README.md

@@ -74,6 +74,8 @@
     - Agent Marketplace: Discover and deploy community-built agents
     - Collaborative Sharing: Share agents with specific users and groups
     - Flexible & Extensible: Use MCP Servers, tools, file search, code execution, and more
+    - [Skills](https://www.librechat.ai/docs/features/skills): Create reusable `SKILL.md` instruction bundles for manual, automatic, or always-on agent workflows
+    - [Subagents](https://www.librechat.ai/docs/features/subagents): Delegate focused work to isolated child agent runs with their own context windows
     - Compatible with Custom Endpoints, OpenAI, Azure, Anthropic, AWS Bedrock, Google, Vertex AI, Responses API, and more
     - [Model Context Protocol (MCP) Support](https://modelcontextprotocol.io/clients#librechat) for Tools
 
@@ -137,6 +139,7 @@
 
 - ⚙️ **Configuration & Deployment**:  
   - Configure Proxy, Reverse Proxy, Docker, & many Deployment options  
+  - Use [S3 with CloudFront](https://www.librechat.ai/docs/configuration/cdn/cloudfront) for stable media links, edge delivery, signed cookies, and secured downloads
   - Use completely local or deploy on the cloud
 
 - 📖 **Open-Source & Community**: