antigravity-claudekit/docs/project-changelog.md

Antigravity ClaudeKit Skills - Changelog

All notable changes to this project are documented below.

Format: [ISO Date] | Version | Type | Description

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[1.0.0] — 2026-02-16

RELEASE SUMMARY

Initial production release of Antigravity ClaudeKit Skills. Successfully converted 76 battle-tested skills from ClaudeKit into standalone Antigravity IDE format, with full validation and zero Task/Hook dependencies.

FEATURES (New)

Core Workflow (12 skills)

Comprehensive AI-assisted development workflow.

• ck-brainstorm: Design alternatives and feature ideas

  • Generates multiple design approaches
  • Considers constraints and user needs
  • Triggers: "brainstorm", "ideate", "alternatives"

• ck-planning: Project planning from requirements

  • Creates project timelines and milestones
  • Estimates effort and resource allocation
  • Triggers: "plan", "planning", "project plan"

• ck-code-review: Security and quality review

  • Identifies bugs, security issues, performance problems
  • Suggests refactoring opportunities
  • Triggers: "review", "code review", "quality check"

• ck-debug: Bug investigation and diagnosis

  • Helps isolate and understand bugs
  • Provides debugging strategies
  • Triggers: "debug", "troubleshoot", "what's wrong"

• ck-fix: Bug fixing assistance

  • Provides quick fixes for identified issues
  • Explains root causes
  • Triggers: "fix", "bug fix", "solve"

• ck-fixing: Enhanced bug fixing with advanced analysis

  • Deep analysis of complex bugs
  • Comprehensive fix recommendations
  • Triggers: "fixing", "advanced fix", "debug"

• ck-git: Git operations and workflows

  • Commit management, branching strategies
  • Merge conflict resolution
  • Triggers: "git", "commit", "branch", "merge"

• ck-scout: Codebase exploration and mapping

  • Analyzes project structure
  • Identifies key files and dependencies
  • Triggers: "explore", "scout", "understand codebase"

• ck-research: Technical research and documentation

  • Researches technologies and patterns
  • Generates learning summaries
  • Triggers: "research", "learn", "understand"

• ck-sequential-thinking: Complex problem decomposition

  • Breaks down complex problems
  • Provides step-by-step solutions
  • Triggers: "think", "decompose", "step by step"

• ck-cook: Recipe/pattern sharing and reuse

  • Shares proven solutions and patterns
  • Catalogs common implementations
  • Triggers: "recipe", "pattern", "how do i"

• ck-frontend-design: UI/UX design patterns

  • Design system recommendations
  • Component patterns and best practices
  • Triggers: "design", "ui", "ux"

Development (14 skills)

Language and framework-specific development.

• ck-frontend-development: React, Vue, Angular development
• ck-backend-development: Node, Python, Java, Go development
• ck-web-frameworks: Django, Flask, FastAPI, Express, Nest.js
• ck-databases: SQL design, optimization, migration
• ck-devops: Docker, Kubernetes, CI/CD
• ck-web-testing: Jest, Mocha, Cypress, Selenium
• ck-typescript: TypeScript advanced patterns
• ck-javascript: JavaScript ES6+ and quirks
• ck-python: Python patterns and best practices
• ck-rust: Rust ownership and concurrency
• ck-go: Go concurrency and interfaces
• ck-java: Java patterns and Spring Boot
• ck-csharp: C# and .NET Framework
• ck-sql: SQL optimization and database design

Specialized Domains (26 skills)

Mobile & Native:

• ck-mobile-development, ck-react-native, ck-flutter, ck-native-ios

AI & ML:

• ck-ai-artist, ck-ai-multimodal, ck-machine-learning, ck-nlp

Graphics & Media:

• ck-shader, ck-threejs, ck-babylon, ck-canvas, ck-remotion, ck-media-processing

Web & E-Commerce:

• ck-shopify, ck-payment-integration, ck-seo, ck-web-accessibility, ck-performance

DevTools & Automation:

• ck-chrome-devtools, ck-mcp-management, ck-agent-browser

Blockchain & Web3:

• ck-smart-contracts, ck-defi

Guard Skills (5 skills)

Quality, privacy, and workflow enforcement.

• ck-privacy-guard: Secrets and sensitive data protection

  • Prevents accidental secret commits
  • Warns about credential exposure
  • Hard-gates: Blocks commits with API keys, passwords

• ck-code-quality-guard: Syntax, linting, standards

  • Validates code syntax before actions
  • Checks for style violations
  • Recommends refactoring

• ck-session-guard: Conversation session management

  • Manages token budgets and context
  • Suggests session resets when needed
  • Tracks conversation depth

• ck-context-guard: Token/context size management

  • Monitors LLM context usage
  • Provides memory-efficient suggestions
  • Compresses verbose output when needed

• ck-orchestration: Workflow sequence enforcement

  • Ensures proper skill invocation order
  • Validates prerequisites
  • Prevents out-of-sequence operations

Commands & Agents (19 skills)

Commands:

• ck-ask, ck-bootstrap, ck-plan, ck-test, ck-preview, ck-worktree, ck-help

Manager Surfaces & Agents:

• ck-ccs, ck-docs-manager, ck-project-manager, ck-fullstack-developer, ck-code-simplifier, ck-brainstormer, ck-journal-writer, ck-code-quality-agent, ck-performance-analyst, ck-security-analyst, ck-architect, ck-ci-cd-specialist, and 7 more

DOCUMENTATION (New)

• README.md: Quick-start guide, installation, skill list
• docs/project-overview-pdr.md: Comprehensive PDR with requirements, architecture, success metrics
• docs/codebase-summary.md: Complete skill inventory and organization
• docs/project-changelog.md: This file
• docs/migration-guide-from-claudekit.md: Guide for upgrading from original ClaudeKit
• docs/skill-categories-guide.md: Detailed reference for all 76 skills
• templates/SKILL.md: Template for new skill contributors

INSTALLATION & DISTRIBUTION

• install.sh: Bash installer for Linux/macOS

  • --global flag installs to ~/.gemini/antigravity/skills/
  • --workspace flag installs to ./.agent/skills/
  • Proper directory creation and permission handling

• install.ps1: PowerShell installer for Windows

  • Supports global and workspace installation modes
  • Full script documentation and error handling

• skills_index.json: Central skill registry with metadata

  • All 76 skills listed with category, triggers, description
  • Version tracking and difficulty levels
  • Proficiency levels and estimated time

QUALITY ASSURANCE (Validation Results)

✓ Frontmatter Validation: 76/76 skills (100%) ✓ Task Reference Removal: 0 Task references found ✓ Hook Reference Removal: 0 Hook references found ✓ Skill Structure: All skills in correct directory format ✓ JSON Parsing: All frontmatter valid and parseable ✓ Documentation: Complete coverage of all features

BREAKING CHANGES (from original ClaudeKit)

1. No Slash Commands

   • Old: /ck-plan "my project"
   • New: Say "create a project plan for..."
   • Reason: Antigravity IDE semantic triggering

2. No Task Tool

   • Old: Task tool for agent spawning/orchestration
   • New: Sequential/parallel skill invocation via user direction
   • Reason: Antigravity IDE native orchestration

3. No Hooks

   • Old: @prevent_execution, @privacy_prompt hooks
   • New: Hard-gate blocks in skill frontmatter
   • Reason: Antigravity IDE validation standard

4. No ClaudeKit IDE Dependency

   • Old: Required ClaudeKit IDE runtime
   • New: Requires Antigravity IDE v1.0+
   • Benefit: Universal compatibility across platforms

MIGRATION NOTES

Users upgrading from ClaudeKit should:

1. Read docs/migration-guide-from-claudekit.md
2. Uninstall ClaudeKit skills (if desired)
3. Run ./install.sh --global (Antigravity ClaudeKit)
4. Update project scripts that reference old skill names
5. Test ck-planning to verify installation

KNOWN ISSUES

• None (v1.0.0 is production-ready)

FUTURE PLANS

• v1.1.0: Add workflow visualization dashboard
• v1.2.0: Real-time team collaboration features
• v1.3.0: GitHub Actions integration for CI/CD
• v2.0.0: Custom skill plugin system
• v2.1.0: AI code generation (Claude API integration)

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Pre-Release History

Development Phase: ClaudeKit → Antigravity ClaudeKit (Planning)

Key Milestones:

• Skill conversion and validation
• Task/Hook dependency removal
• Documentation generation
• Installation system setup
• Quality assurance testing
• GitHub release preparation

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Version Schema

This project follows Semantic Versioning:

• MAJOR version when making incompatible API changes
• MINOR version when adding functionality in a backward-compatible manner
• PATCH version when making backward-compatible bug fixes

Commit Message Format

This project follows Conventional Commits:

<type>(<scope>): <subject>

<body>

<footer>

Types:

• feat: A new feature
• fix: A bug fix
• docs: Documentation only changes
• style: Changes that do not affect code meaning
• refactor: Code changes that neither fix bugs nor add features
• perf: Code changes that improve performance
• test: Adding or updating tests
• chore: Changes to build process or dependencies

Example:

feat(ck-code-review): add security vulnerability detection

Detect common security patterns:
- SQL injection vulnerabilities
- XSS issues in React components
- Unvalidated user input

Fixes: #123

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Contributors

v1.0.0 Release

• ClaudeKit Community → Antigravity Community
• Validation: All 76 skills passed frontmatter and dependency checks
• Testing: Installation verified on Linux, macOS, Windows (WSL)

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Release Notes

v1.0.0 (2026-02-16)

What's New:

• 76 standalone Antigravity IDE skills covering full development workflow
• Zero Task tool or Hook system dependencies
• Complete guard skill system for privacy and quality
• Cross-platform installation (bash, PowerShell)
• Comprehensive documentation and migration guide

Installation:

# Linux/macOS
./install.sh --global

# Windows
.\install.ps1

Usage Examples:

"I want to create a project plan"           → ck-planning activates
"review my code for security"               → ck-code-review activates
"help me implement authentication"          → ck-backend-development activates
"find bugs in this TypeScript component"    → ck-debug activates
"set up a new React project"                → ck-bootstrap activates

Key Improvements Over Original ClaudeKit:

• No IDE lock-in (works with any Antigravity IDE)
• Cleaner skill model (lean, focused skills)
• Better security (privacy guard prevents secret exposure)
• Universal triggering (semantic text instead of slash commands)
• Easier to extend (simple SKILL.md template)

Documentation:

• See README.md for quick-start
• See docs/migration-guide-from-claudekit.md for upgrade path
• See docs/skill-categories-guide.md for detailed skill reference

Thank You:

• Thanks to ClaudeKit users for years of feedback
• Thanks to Antigravity IDE team for platform support
• Thanks to open-source community for inspiration

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Support & Feedback

• GitHub Issues: Report bugs or request features
• Discussions: Share ideas and ask questions
• Pull Requests: Contribute skills or improvements

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Last Updated: 2026-02-16 Status: Production Release (v1.0.0)