Add Claude Code plugin configuration

[MaxGhenis]

Summary

This PR adds policyengine-claude plugin configuration to enable automated installation of agents, commands, and skills for PolicyEngine development.

Changes

• ✅ Add plugin auto-install configuration in .claude/settings.json
• ✅ Configure auto-install of country-models plugin from PolicyEngine/policyengine-claude

Benefits

For Developers

• ✅ Access to 15 specialized agents - rules-engineer, test-creator, document-collector, validators, optimizers, CI fixer
• ✅ 3 slash commands - /encode-policy, /review-pr, /fix-pr
• ✅ 2 skills - policyengine-us-skill (simulation patterns), policyengine-standards-skill (code quality)
• ✅ Automatic installation - When you trust this repo, plugin auto-installs

For Teams

• ✅ Standardization - All team members get same agents/commands/skills
• ✅ Easy updates - Plugin manager handles updates
• ✅ No Git complexity - No submodule management needed

What's Included

The country-models plugin provides:

• rules-engineer - Implements variables/parameters with zero hard-coded values
• test-creator - Creates tests from documentation (isolated development)
• document-collector - Gathers authoritative sources
• Validators - policy-domain, reference, cross-program, implementation
• Optimizers - Performance optimization suggestions
• CI tools - Automated CI fixing
• /encode-policy - Full implementation workflow orchestration
• /review-pr - Comprehensive PR review
• /fix-pr - Automated PR fixes

Installation

Automatic (Recommended)

When you trust this repo in Claude Code, the plugin auto-installs!

Manual (Optional)

/plugin marketplace add PolicyEngine/policyengine-claude
/plugin install country-models@policyengine-claude

Testing

After merging:

1. Team members trust the repo in Claude Code
2. Plugin auto-installs from marketplace
3. Agents, commands, and skills are immediately available
4. Test with: /encode-policy [program] or invoke agents directly

Related

• Plugin Repository: https://github.com/PolicyEngine/policyengine-claude
• See also: Migrate from .claude submodule to policyengine-claude plugin policyengine-us#6692 (similar PR for policyengine-us)

Changelog

Included in changelog_entry.yaml:

• Added: Claude Code plugin configuration for automated agent installation

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🤖 Generated with Claude Code

Co-Authored-By: Claude noreply@anthropic.com