v1.2.0

🚀 Key Features

OpenAI-Compatible RAG Proxy (POST /v1/chat/completions)

Gleann can now act as a drop-in RAG proxy for any tool that speaks the OpenAI API protocol (Cursor, VS Code, LangChain, Python SDK, etc.).

• Zero-config Routing: Set the model name to gleann/my-docs to automatically retrieve context from the my-docs index before forwarding to the LLM.
• Multi-Index: Use gleann/docs,code to search across multiple indexes simultaneously.
• Pure LLM Mode: Use gleann/ to bypass RAG and chat directly with your configured LLM.
• Full Streaming Support: Native SSE chunk streaming for fast, real-time responses.
• Endpoint: GET /v1/models natively exposes all your local gleann indexes as selectable AI models.

Interactive Conversation TUI & History

The CLI chat experience has been completely rewritten to support persistent state.

• Conversation History: Chat sessions are now automatically saved and summarized.
• Interactive Picker: Use gleann chat --pick to open a beautiful TUI to select, resume, or start conversations.
• Index-less Chatting: You can now start a terminal chat session purely for LLM interaction without needing to select an active RAG index.
• Word-Wrap Streaming: Terminal output now gracefully word-wraps to fit your terminal window width during streaming.

Multi-Index Search & Backend Upgrades

• Multi-Searcher Engine: Powerful new ability to fan-out queries across multiple heterogeneous vector indexes simultaneously and rank merged results by score.
• Embedding Cache: Vastly speeds up re-indexing by skipping embedding generation for unchanged document chunks.
• gleannignore: Native support for .gitignore-style syntax to exclude specific files/folders during index builds.
• Custom System Roles: Added pkg/roles registry to easily apply tailored system prompts (e.g., --role code or --role explain) from the CLI.

🛠 Server & Telemetry Enhancements

• Prometheus Metrics: Added /metrics endpoint exposing vector search latency, index sizes, build durations, and HTTP stats for Grafana dashboards.
• Webhook Subscriptions: Added /api/webhooks to register external services for notifications on events like build_complete and index_deleted (with HMAC-SHA256 signature validation).
• Graph Re-Indexing: Fixed duplicate PK constraints during KuzuDB AST graph re-indexing and added auto-detection of Go modules.

🐛 Fixes & Housekeeping

• Fixed TUI index picker syntax errors preventing proper skipping behavior.
• Fixed trailing comma serialization issues in OpenAPI schema generation.
• Corrected missing glamour dependency in go.mod causing CI/CD pipeline build failures.
• CLI commands have been split and refactored into modular cmd_*.go files for maintainability.

📦 Upgrading

Install the latest version using go install:

go install github.com/tevfik/gleann/cmd/gleann@latest

Full Changelog: v1.1.6...v1.2.0