ARCOS-B
The Boundary Model for Software Reasoning.
ARCOS-B separates intent interpretation from structural decision-making, enforcing deterministic, auditable transformations.
Language proposes. ARCOS-B decides. The environment observes.
Early access for the Founders Cohort.
Copilot Boundary Model
Hard separation between intent interpretation, structural reasoning, and environment changes. Only preview, never automatic apply.
User Intent
Natural Language
Copilot
Intent Translation
ARCOS-B
Deterministic Engine
IDE / Host
Preview Only
Language proposes.ARCOS-B decides.Environment observes.
Copilot never writes
Intent translation only, no direct file access
ARCOS-B never interprets
Ambiguity rejected, explicit commands only
Host never decides
Preview and observe, no content modification
Zero-Trust Model
ARCOS-B assumes all input is potentially incorrect and all output must be validated. Operations execute in isolation with no side effects. The host environment cannot force apply or modify the result.
Design Principles
- Determinism: Same input = Same result
- Authoritative reasoning without ambiguity
- Explicit responsibility boundaries
- Fail-closed by design
What ARCOS-B is not
- Not 'another LLM' integration
- Not probabilistic generation
- Not direct IDE write access
- Not suggestion-based guidance
Traditional Copilots vs ARCOS-B
Roadmap
ARCOS-B Deterministic Engine v1
Core reasoning with strict responsibility boundaries.
IDE Boundary Enforcement
Preview-only mode for VSCode, Cursor, and JetBrains.
Enterprise Audit Trail
Immutable decision log and verification checkpoints.
Copilot Integration Standards
Reusable boundary contracts for external copilots.
Request a Private Demo
Experience deterministic, auditable software reasoning with strict boundary enforcement.