_Kerman
ab56e0df0a
- turn boundary now returns false for an empty admitted batch (claimed input removed before the wake) instead of opening a turn and spending a model call on nothing; the step boundary already had the symmetric guard. - a max-token step stays sticky when steering or injected work continues the turn: a later completed step no longer downgrades the outcome, matching the TurnEndReasonMap contract. - session/queue wire schema accepts the context placement (previously the zod union rejected injected-context snapshots wholesale and the client silently dropped the whole frame); schema tests cover all placements. - headless runs settle at whole-agent idle instead of the first turn/end, honoring the one-shot idle-to-idle contract. - flush JSDoc names the real callers (checkpoint policy, goal-session, teardown, self-flushing consumers); apiproxy zh README loses its stale duplicate history section; ACP note/README record the delivered error rejection and turnless-cancelled behaviors.
core/ — product API spine
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The session log, system-prompt assembly, tool registry, agent vocabulary, and concrete loop that form the harness's default control spine. These are product packages — the stable surface plugins and consumers build against.
| Package | Role | ctx key |
|---|---|---|
scope/ |
Scoped-context registration primitive (scope tags, scope-filtered dispatch) | (library — no ctx key) |
session/ |
Event-sourced session log + in-memory store | ctx.sessions |
system-prompt/ |
Prompt-section + tool-schema assembly registry | ctx.systemPrompt |
tools/ |
Scoped tool registry + pre-policy, guards, around-dispatch, post-policy, and final-result observation | ctx.tools |
agent/ |
Agent interface, live registry, process-local initiator scope, agent/* event vocabulary |
ctx.agents |
agent-loop/ |
Concrete plugin implementing the public Agent contract and owning the loop driver |
ctx.agentLoop |
scope/ is the one non-service package here: a dependency-free library (createScope/scopeOf/scopeTarget) the registries and the loop build per-agent scoping on — it sits below session/ and system-prompt/ in the module graph precisely so they can consume it without a cycle.
agent-loop is the one concrete implementation of the agent seam and lives here because it is the harness's default product loop. It runs each driver inside ctx.agents.withInitiator(). Extension plugins depend on agent, including when they need the initiating Agent, and never on agent-loop directly, so the loop stays swappable.
The default composition that wires this spine into a runnable agent lives in examples/agent-spine-demo: one bundle plugin that loads the control spine plus selected default capabilities (timer + llm + sessions + fallback session titles + system-prompt + tools + agents + invariants + the local skill family + tool-bash + workspace-context + agent-loop) and forwards agent-loop's agents list as its own config. It sits in examples/ — ready-to-run demo/reference bundles — not in core/: core/ ships the swappable spine pieces, while a demo bundle picks one concrete composition of them and adds a front door.