diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
new file mode 100644
index 0000000..f12e810
--- /dev/null
+++ b/.github/copilot-instructions.md
@@ -0,0 +1,57 @@
+# GitHub Copilot Custom Instructions for Agent Plugins for AWS
+
+## Project Overview
+
+This repository contains Agent Plugins for AWS that equip AI coding agents with the skills to help architects, deploy, and operate on AWS. The primary plugin is `deploy-on-aws`, which provides recommendations, cost estimates, and Infrastructure as Code generation.
+
+## Technology Stack
+
+- **Language**: Primarily TypeScript/JavaScript
+- **Framework**: Claude Code plugins
+- **Cloud Platform**: AWS
+- **Infrastructure as Code**: CDK and CloudFormation
+- **Tools**: MCP Servers (awsknowledge, awspricing, aws-iac-mcp)
+
+## Code Organization
+
+- `/plugins` - Plugin implementations
+- `/schemas` - Data schemas and type definitions
+- `/tools` - Utility tools and helpers
+- `/.github` - GitHub workflows and configuration
+- Root files: Configuration for linting (markdownlint, semgrep), security (gitleaks), and formatting (dprint)
+
+## Development Practices
+
+1. **Code Quality**: Uses pre-commit hooks, semgrep for security analysis, and gitleaks for secret detection
+2. **Documentation**: Comprehensive guides including DEVELOPMENT_GUIDE.md, CONTRIBUTING.md, TROUBLESHOOTING.md
+3. **Testing**: Follow existing test patterns in the codebase
+4. **Formatting**: Use dprint for code formatting consistency
+5. **Commit Signoff**: Web commit signoff required (git commit -S flag)
+
+## Plugin Development Guidelines
+
+- Follow the workflow pattern: Analyze → Recommend → Estimate → Generate → Deploy
+- MCP Servers provide: AWS documentation, pricing data, and IaC best practices
+- Skill triggers should be intuitive natural language phrases users would say
+- Always include cost estimation and confirmation steps before deployment
+- Generate infrastructure code with explanations and best practices
+
+## Important Reminders for Copilot
+
+1. **AWS Best Practices**: Recommend services aligned with AWS Well-Architected Framework
+2. **Cost Awareness**: Always estimate and display costs to users
+3. **User Confirmation**: Never deploy without explicit user confirmation
+4. **Multi-Agent Support**: Currently supports Claude Code; consider extensibility
+5. **Security**: Follow AWS security best practices and principle of least privilege
+6. **Documentation**: Provide clear explanations for architectural recommendations
+
+## Key Files to Reference
+
+- `README.md` - Project overview and installation instructions
+- `DEVELOPMENT_GUIDE.md` - How to create new plugins
+- `CONTRIBUTING.md` - Contribution guidelines
+- `TROUBLESHOOTING.md` - Common issues and solutions
+
+## License
+
+Apache-2.0 License - Ensure all contributions comply with this license
diff --git a/.github/instructions/codeowners.instructions.md b/.github/instructions/codeowners.instructions.md
new file mode 100644
index 0000000..f5700ee
--- /dev/null
+++ b/.github/instructions/codeowners.instructions.md
@@ -0,0 +1,29 @@
+---
+applyTo: ".github/CODEOWNERS"
+---
+
+# CODEOWNERS file rules
+
+Please verify this checklist to keep the `.github/CODEOWNERS` file following all five of these rules:
+
+1. [ ] ONLY teams are used (no users)
+2. [ ] Teams MUST be vertically aligned across all lines with spaces (no tabs)
+3. [ ] Each section, "## section", MUST be alphabetically sorted (keep file patterns in order)
+4. [ ] Admins or maintainers must be first (if both separated by one space) - others follow with two spaces
+5. [ ] The file MUST follow this regular expression `^.github/CODEOWNERS *@awslabs/agent-plugins-admins$`
+
+EXAMPLE:
+
+```.github/CODEOWNERS
+README.md                  @awslabs/agent-plugins-admins @awslabs/agent-plugins-maintainers  @awslabs/otherteams
+
+## Plugins (alphabetically listed)
+
+plugins/a                  @awslabs/agent-plugins-maintainers  @awslabs/a-team
+plugins/d                  @awslabs/agent-plugins-maintainers  @awslabs/a-d-group
+plugins/z                  @awslabs/agent-plugins-maintainers  @awslabs/the-z-team
+
+## File must end with CODEOWNERS file
+
+.github/CODEOWNERS         @awslabs/agent-plugins-admins
+```
diff --git a/TROUBLESHOOTING.md b/TROUBLESHOOTING.md
index 515c24c..89e9390 100644
--- a/TROUBLESHOOTING.md
+++ b/TROUBLESHOOTING.md
@@ -63,7 +63,7 @@ claude
 /plugin list
 # Then navigate to the "Installed" tab using your right arrow
 
-# Check available skills 
+# Check available skills
 /skills
 
 # Check available mcp servers
diff --git a/mise.toml b/mise.toml
index 3add071..934d76e 100644
--- a/mise.toml
+++ b/mise.toml
@@ -118,4 +118,4 @@ run = [
     { task = "lint" },
     { task = "fmt:check" },
     { task = "security"}
-]
\ No newline at end of file
+]