Module backend 

Backend contracts (§8). Generic parameters only; no dyn (§6).

Every mutating call takes the OpId that was durably journaled before it (§12). The OpId carries (txn, epoch): the backend refuses the call with Outcome::fenced() if that epoch is not the journal’s current epoch for the transaction, and tags the work it starts with the OpId so jobs_tagged can find it later. This replaces the &Lease parameter in §8.

Structs

AgentLimits

Limits on launched agents (services.planarian.agents.limits, §12d).

Built

DeviceInfo

InstanceId

One start of an agent’s unit: its systemd InvocationID (I24). The name alone never identifies an agent.

OverrideSet

Flat option assignments for planarian/overrides.nix (wrapped in lib.mkOverride 90).

PinnedSource

The owner’s configuration as Nix will see it.

SessionInfo

StagedSource

An immutable staged copy (§9 step 1).

Enums

Ending

How a unit’s main process last ended, as the supervisor reports it.

PowerSource

SourceKind

Constants

AGENTS_SLICE

The slice every launched agent runs in (§12d, R05): the posture stops it as a whole.

Traits

Backends

Every backend the system needs, as one generic parameter (§6: generics, no dyn). The daemon and the watchdog instantiate it with the real backends; the gym, with fakes.

Clock

GenerationBackend

InventoryBackend

ProbeBackend

ProcessBackend

RuntimeOptionBackend

The core-owned runtime-settable options (§12a).

SessionBackend

SnapshotBackend

UnitBackend

Functions

agent_unit

The unit an agent runs in (§11, §16).

valid_agent_name

An agent’s name: 1-32 of a-z, 0-9 and -, not starting with -.