Architecture

Distinct responsibilities. A coherent foundation.

Boundry's products are not a collection of overlapping tools. Each owns a single architectural responsibility, and together they form a foundation on which applications and agents can be built, operated, and extended.

Responsibilities

Who owns what.

Clear ownership is the point. When each concern has exactly one home, systems are easier to reason about, secure, and evolve.

ProductResponsibilityScope
FeltDBDurable state and control planeA database and application control plane providing durable state and the foundation for applications and agents.
AppPortCapability discovery and invocationA capability catalog and protocol that makes application functionality discoverable and usable by agents, with semantic and authority metadata.
AppBoundryApplication boundary and portabilityTechnology for application isolation, capability discovery, and portability.
AuthBoundryAuthority and delegationInfrastructure for authorization, delegated authority, and controlled access across applications and agents.
AgentBoundryAgent execution and operationInfrastructure for building and operating agents with explicit capabilities, boundaries, and execution controls.
FeltKitIntegrated developer experienceAn integrated developer platform that brings application development, durable state, capabilities, services, and deployment together.
Design properties

Modular by design.

Modularity

Adopt one component at a time

Each product is designed to be useful on its own. A team that needs durable state, or authority and delegation, or agent execution controls can adopt that product without adopting the rest.

Interoperability

Connected through explicit contracts

Products are designed to work together through defined interfaces rather than hidden coupling, so the relationships between them remain visible, reviewable, and replaceable.

Integration

An integrated path when you want it

FeltKit brings application development, durable state, capabilities, services, and deployment together for teams that prefer one integrated developer platform.

Reading the diagram

From state to agents.

FeltDB provides durable state and the control plane — the authoritative foundation that applications and agents build on.

AppBoundry defines the application boundary: isolation, capability discovery, and portability.

AppPort makes application functionality discoverable and invocable by agents, carrying semantic and authority metadata with each capability.

AuthBoundry governs authority: authorization, delegated authority, and controlled access across applications and agents.

AgentBoundry is where agents are built and operated, with explicit capabilities, boundaries, and execution controls.

FeltKit spans the stack as the integrated developer experience.

Discuss the architecture with our team.