feat(harness): discover skills progressively

2026-09-07 15:43:39 +08:00
parent d229ac0f0d
commit ec0686cd56
6 changed files with 456 additions and 0 deletions
@@ -0,0 +1,55 @@
+import { realpath } from "node:fs/promises";
+import type { EventStore } from "../events/event-store.js";
+import type { IndexedSkill, SkillIndex } from "./skill-catalog.js";
+
+export type SkillEventInferenceOptions = {
+  sessionId: string;
+  runId: string;
+  eventStore: EventStore;
+  skillIndex: SkillIndex;
+};
+
+export class SkillEventInference {
+  readonly #sessionId: string;
+  readonly #runId: string;
+  readonly #eventStore: EventStore;
+  readonly #skillIndex: SkillIndex;
+  readonly #pending = new Map<string, IndexedSkill>();
+
+  public constructor(options: SkillEventInferenceOptions) {
+    this.#sessionId = options.sessionId;
+    this.#runId = options.runId;
+    this.#eventStore = options.eventStore;
+    this.#skillIndex = options.skillIndex;
+  }
+
+  public async onReadRequested(input: { toolCallId: string; path: string }): Promise<void> {
+    let canonicalFilePath: string;
+    try {
+      canonicalFilePath = await realpath(input.path);
+    } catch {
+      return;
+    }
+    const skill = this.#skillIndex.find(canonicalFilePath);
+    if (skill === undefined) return;
+
+    this.#pending.set(input.toolCallId, skill);
+    this.#eventStore.append(this.#sessionId, {
+      type: "skill.requested",
+      runId: this.#runId,
+      payload: { name: skill.name, source: skill.source },
+    });
+  }
+
+  public onReadCompleted(input: { toolCallId: string; success: boolean }): void {
+    const skill = this.#pending.get(input.toolCallId);
+    this.#pending.delete(input.toolCallId);
+    if (skill === undefined || !input.success) return;
+
+    this.#eventStore.append(this.#sessionId, {
+      type: "skill.loaded",
+      runId: this.#runId,
+      payload: { name: skill.name, source: skill.source },
+    });
+  }
+}