Features
Fable5-structured reasoning pipeline
Automated query decomposition
Benchmark suite for quality-cost tradeoff measurement
Cost-optimization modeling per task type (COST.md)
Custom hooks for preprocessing and validation
Output style templates for consistent formatting
Routing guides for code vs. writing tasks
Blind-test parity validation scripts
Self-hosted operational model (no external API dependency)
AGPL-3.0 open-source license
Plugin system for Claude Code
Skill-based session mode (SKILL.md trigger)
Markdown-based configuration
Voice/voice conversation: not supported
Role-based agent assignment (PM, architect, engineer, QA)
Structured output generation (requirements, design, code)
Data Interpreter for data analysis tasks
SELA module for self-evolving agents
Multi-agent collaboration and workflow orchestration
Meta-programming support for custom agent behaviors
Modular and extensible architecture
Built-in demo projects and case studies
MIT License fully open-source
Flow orchestration for complex agent pipelines
Integration with GitHub Actions and CI/CD
Community-driven with GitHub and Discord
