Phase 9: track read tool paths to SKILL.md on tool_call — SPEC §6.2 #3.

Match read tool paths against registered skills when trackReadPaths is enabled and upsert with source read.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/index.ts

@@ -1,8 +1,29 @@
 import { dirname } from "node:path";
-import type { ExtensionAPI, Skill } from "@earendil-works/pi-coding-agent";
-import { detectSlashSkill, parseSkillBlocksFromText, userMessageText } from "./detect.js";
+import { isToolCallEventType, type ExtensionAPI, type ExtensionContext, type Skill } from "@earendil-works/pi-coding-agent";
+import { detectSlashSkill, matchReadPathToSkillWhenEnabled, parseSkillBlocksFromText, userMessageText } from "./detect.js";
+import { readSettings } from "./settings.js";
 import { findRegisteredSkillByName, resolveRegisteredSkills } from "./skills-registry.js";
-import { createInitialState, trackSkill } from "./state.js";
+import { createInitialState, trackSkill, type ExtensionState } from "./state.js";
+
+function trackReadSkillPath(
+	path: string,
+	ctx: ExtensionContext,
+	state: ExtensionState,
+	registeredSkills: Skill[],
+): void {
+	const settings = readSettings(ctx);
+	const skills = resolveRegisteredSkills(ctx.cwd, registeredSkills);
+	const matched = matchReadPathToSkillWhenEnabled(path, skills, settings.trackReadPaths);
+	if (!matched) {
+		return;
+	}
+	trackSkill(state, {
+		name: matched.name,
+		filePath: matched.filePath,
+		baseDir: matched.baseDir,
+		source: "read",
+	});
+}
 
 export default function skillReinject(pi: ExtensionAPI): void {
 	const state = createInitialState();
@@ -51,4 +72,11 @@ export default function skillReinject(pi: ExtensionAPI): void {
 			});
 		}
 	});
+
+	pi.on("tool_call", async (event, ctx) => {
+		if (!isToolCallEventType("read", event)) {
+			return;
+		}
+		trackReadSkillPath(event.input.path, ctx, state, registeredSkills);
+	});
 }