From c48d8ac7160c3cdcf32ed4e488807d3daeb8d457 Mon Sep 17 00:00:00 2001 From: Adam Malczewski Date: Fri, 5 Jun 2026 13:07:23 +0900 Subject: feat(observability): Phase A logging substrate — Logger/Span ABI + journal sink (250 tests) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Structured, agent-first logging captured durably to an append-only journal file. Kernel (contracts/logging.ts): leveled/attributed Logger + Span, auto-scoped per extension (host stamps manifest.id, unspoofable), incremental span records (open/close) for crash-reconstructable traces, injected LogSink (pure record-builder). ctx.log on ToolContract; runTurn opens turn/step/tool-call spans and captures the verbatim pre-mutation prompt (the 'before') on the step span. journal-sink (new package, bootstrap dep — not an extension): LogSink appending NDJSON to a rotating journal; pure serialize + thin fs edge; fail-safe drop, never blocks a turn. host-bin injects it via HostDeps; session-orchestrator threads host.logger (childed per turn) into runTurn. Redaction is per-extension self-redaction (no shared helper — isolation over DRY). The out-of-process collector + SQLite store + the verbatim 'after' provider.request capture are Phase B / next (notes/observability-design.md §10/§11). Verified: tsc -b clean, 250 tests (218→+32), biome clean. Live boot: a turn's journal holds host logs + turn/step spans (open+close) + the prompt:before record with the verbatim messages array. Harness: ORCHESTRATOR §3 rule-scoping map; .dispatch/rules/isolation-over-dry.md; notes/observability-design.md (design D1–D10 + Phase A/B plan). --- packages/kernel/src/contracts/runtime.ts | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'packages/kernel/src/contracts/runtime.ts') diff --git a/packages/kernel/src/contracts/runtime.ts b/packages/kernel/src/contracts/runtime.ts index 68c0444..1e8f14f 100644 --- a/packages/kernel/src/contracts/runtime.ts +++ b/packages/kernel/src/contracts/runtime.ts @@ -10,6 +10,7 @@ import type { ChatMessage } from "./conversation.js"; import type { ToolDispatchPolicy } from "./dispatch.js"; import type { AgentEvent } from "./events.js"; +import type { Logger } from "./logging.js"; import type { ProviderContract, ProviderStreamOptions, Usage } from "./provider.js"; import type { ToolContract } from "./tool.js"; @@ -73,6 +74,13 @@ export interface RunTurnInput { /** Cancellation signal for the entire turn. */ readonly signal?: AbortSignal; + + /** + * Optional logger for structured span instrumentation. The runtime opens + * turn/step/tool-call spans using this logger. If omitted, no spans are + * emitted (backward-compatible with callers that don't yet pass a logger). + */ + readonly logger?: Logger; } /** -- cgit v1.2.3