Open-source developer tools, AI agent skills, and privacy-first apps.

Research & Standards

📜
iCal Dependency Graph

Inter-property dependencies in RFC 5545, extracted from prose into YAML/JSON. 25 bugs traced across 17 projects in 8 languages.

DOI IETF I-D CC BY 4.0

Developer Tools

🔍
sap-odata-explorer

Query SAP OData endpoints in plain English.

TypeScript MIT
📋
ai-agent-spec-skill

Spec skill for AI coding agents. Clarify what to build before writing code.

Skill Apache-2.0
✅
ai-agent-tdd-skill

TDD skill for Claude Code. Explore, plan, test-first implement, verify.

Skill Apache-2.0
🛠
ai-agent-dev-workflow

Spec, Plan, Review, Implement, Verify; a complete AI development workflow plugin for Claude Code.

Plugin Apache-2.0
🔬
sap-atc-checker

Run SAP ATC checks with any check variant via ADT API. Claude Code skill.

TypeScript Apache-2.0
☁
iCloud Calendar MCP

MCP server for iCloud Calendar. CLI-based calendar access.

Kotlin MCP Registry
🔄
iCalDAV

Kotlin CalDAV client with offline support and conflict resolution.

Kotlin Apache-2.0

Apps

📅
KashCal

Offline-capable calendar with iCloud sync. Your schedule stays on your device.

Kotlin Apache-2.0
🎂
KashCake

Birthday reminders from your contacts. Never miss a celebration.

Kotlin Apache-2.0