Instant Onboarder

The Problem: Developer onboarding is a massive enterprise bottleneck, often costing weeks of productivity as engineers sift through dense, poorly documented codebases. Standard cloud-based AI tools fail to solve this due to strict corporate data privacy rules and runaway API token costs. The Solution: "Instant Onboarder" is a premium, blazing-fast Rust-based Command Line Interface (CLI) and Terminal User Interface (TUI). It introduces a hybrid, privacy-first intelligence architecture designed to optimize developer experience (DX) and enterprise budget constraints. How It Works: Zero-Cost Code Mapping: The tool uses ultra-fast local directory traversal to securely index files while completely ignoring clutter like node_modules or .git. Just-In-Time (JIT) Intelligence: Instead of scanning an entire codebase and draining API limits, it only requests LLM analysis when a developer explicitly selects a file for a deep dive. Hybrid Fallback: It communicates locally with IBM Granite code models via Ollama for 100% private, zero-cost operations, with a seamless cloud fallback to the high-performance IBM watsonx.ai REST API. Token-Saving Cache: Responses are locally cached and mapped directly to SHA-256 file hashes. If a code file hasn’t changed, subsequent lookups cost exactly zero tokens and load instantly. Designed with a gorgeous multi-pane dashboard using Ratatui and rich diagnostic error rendering via Miette, Instant Onboarder delivers elite DX while maintaining tight corporate data walls and predictable cloud spend.