Dropstone is an agentic IDE that goes beyond simple code completion to provide autonomous software engineering capabilities. While standard editors guess the next token, Dropstone's Horizon Mode orchestrates a recursive swarm of agents to explore, compile, and debug solutions in the background, decoupling deep reasoning from immediate keystrokes.

Key features include Horizon Mode for architectural planning, D3 Engine (Dynamic Distillation & Deployment) for infinite context retention, Recursive Swarm Architecture simulating 10,000+ divergent timelines, Semantic Entropy Tracking for real-time hallucination defense, Context Virtualization allowing 24h+ inference horizons, Flash-Gated Consensus verification protocol, Hyper-Parallelized Search with 10,000 ephemeral scout agents, Distributed Knowledge Mesh for collaborative reasoning, and Associative Semantic Graphing for resolving semantic ambiguities.

The system works by deploying up to 10,000 isolated scout agents using optimized Small Language Models to explore low-probability solution vectors. When scouts hit dead ends, they broadcast failure vectors to prune invalid logic branches globally. Candidate solutions with high confidence (P > 0.85) are promoted to Frontier Models for refinement. The system utilizes Semantic Entropy Tracking to monitor agent output variance and prune hallucinated logic through Negative Knowledge Propagation.

Benefits include 100x faster prototyping, near-zero manual overhead, autonomous refactoring capabilities, enterprise-scale engineering support, and legacy migration assistance. The system prevents logic errors before they happen and maintains causal logic over extended inference horizons without degradation.

Dropstone targets software engineers working on complex systems, enterprise development teams, developers seeking to reduce cognitive load, and organizations dealing with architectural debt. It integrates as a fully compatible fork of VS Code and utilizes local D3 Runtime orchestration with deterministic state management.