MOSShipped

Modular Orchestration System

A local multi-agent orchestration system. Agents coordinate through an explicit, inspectable loop (plan, act, review) rather than one opaque prompt.

Designer & builderNov 2025
Agent orchestrationAgenticDeveloper tools

Signal

Problem

Long agent runs lose the reasoning and intermediate state that make them reviewable.

Outcome

A local multi-agent orchestration system. Agents coordinate through an explicit, inspectable loop (plan, act, review) rather than one opaque prompt.

How it runs

I built MOS to run locally first. Every step is reproducible and auditable before anything touches a shared environment, the same premise as Why I build orchestration systems locally first. Intermediate state is a first-class artifact, not an implementation detail. Orchestration engineering is the meta version of the same loop. It ships beside Agent CI/CD in the same agent-governance stack.

Architecture

Two figures: how a single workflow run moves through the platform, and the wave-based loop that executes it. Every phase writes its state to disk between steps, which is what makes a run pausable and replayable.

How a workflow runs through the platform

01Agent surfaceIDE · CLI · chatentry point, one contract
02Domain workflowplugin packagebounded phases for a job
03Orchestration coreengine · registry · traceroutes and records each step
04Resultsuccess · partial · failurestandardized either way

Agent clients invoke domain workflows; the orchestration core routes each run through a shared registry and returns a standardized result.

The parallel execution loop

1Initializerestore from checkpoint
2Pre-batch gateabort or continue
3Parallel batchbounded wave of work
4Post-batch gatereview before next wave
5Outcomecomplete or queue next wave

Work runs in bounded waves, gated before and after each batch, with checkpoints so a run can pause and resume.

System zones

Entry zone

Agent clients call the same workflow interface regardless of surface.

Workflow zone

Each domain plugin decomposes a job into inspectable phases with artifacts on disk.

Core zone

The engine enforces gates, rate-limits parallel work, and emits traceable lineage.

Local-first

The full loop runs locally so intermediate state is reproducible before anything shared.

Capabilities

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