A coding harness with fewer hard dependencies.
Sofia treats the model, provider, interface, and cloud as replaceable. The constant is the harness: context, tools, execution, approvals, and the record of the work.
Same harness. Different working surfaces.
The CLI is for immediacy; the desktop app is for work that benefits from visual structure. Both speak the same runtime concepts.
Stay in the terminal.
Launch in a repository, choose a model, steer the agent, inspect tool activity, and keep coding without giving up your existing shell workflow.
See the session as a workspace.
Use tabs, visual trajectories, change review, model state, and richer controls when the work outgrows a single terminal transcript.
Interrupt the trajectory without starting over.
Queue a goal, steer the current run, or force a deliverable. Intervention is part of agent execution, not another message with ambiguous priority.
current goal Refactor provider fallback without changing public behavior steer Do not touch model selection. Keep this change inside the transport layer. queued next Add regression tests for half-open circuit recovery
Small concepts that compose.
Models, tools, connections, policies, and remote jobs are explicit primitives with consistent access and audit boundaries.
Stable Sofia model IDs can route to BYOK credentials, Sofia PAYG, organization-managed keys, or Sofia-hosted vLLM/SGLang endpoints.
File, shell, browser, repository and domain-specific tools participate in the same approval and execution model.
Skills, plugins, MCP tools, connections and remote worker actions can be discovered and executed through a single gateway.
Spend, concurrency, model access, desktop versions, SSO, and team membership are enforced in the path that performs the action.
Long-running work can stay local or become a durable remote job when an organization explicitly enables that execution mode.
Use the interface that fits the task.
Start in the CLI. Open the same kind of work in Desktop. Add Sofia Cloud only where shared infrastructure earns its place.