M31A System Architecture (L0-L9)

M31A is organized into 10 strict downward-dependent architectural layers.

Layer Summary

Layer	Primary Subsystems	Core Responsibilities
L0 Kernel & Storage	kernel, persistence, storage, events, ids	Strongly typed UUID v7 domain IDs, SQLite database pool, storage layout, cancellation tokens
L1 Security & Policy	policy, sandbox, platform, config	Non-bypassable policy evaluation, 8-tier configuration engine, Landlock/seccomp confinement
L2 Capabilities & Tools	capability, tools, process, git, repo	28 core model tools, process tree supervision, Git worktrees, LSP code intelligence
L3 Intelligence & Context	model, prompt, context, memory	NVIDIA NIM provider, SSE streaming accumulator, context token compaction, prompt templates
L4 Agents & Roles	agent, skill	18 built-in agent roles, supervisor, adaptive replanning, multi-agent task delegation
L5 Planning & Scheduling	planning, dag, scheduler	Task graph decomposition, Critical Path Method (CPM), topological sorting, job worker pool
L6 Execution & Checkpoints	change, checkpoint, pipeline	Two-phase checkpoint manager, artifact ledger, workspace change application
L7 Verification & Recovery	verification, eval, recovery	7-tier verification hierarchy, Nyquist gate, crash recovery scanner, acceptance eval
L8 Autonomy & Workflows	controller, state, workflow, telemetry	Autonomy controller, stage progression, Genesis multi-stage workflows, metrics collection
L9 CLI, TUI & Deployment	cli, tui, init, interaction, deployment	Clap 4 CLI, Ratatui cockpit, setup wizard, compile-time deployment channel isolation