diff --git a/src/legal-api.ts b/src/legal-api.ts
index 11a7fa8..fee4dd8 100644
--- a/src/legal-api.ts
+++ b/src/legal-api.ts
@@ -148,6 +148,20 @@ export class LegalApi {
 		// Return static style guide reference
 		return "ראה skill-legal-decision/SKILL.md — מדריך סגנון מלא של דפנה תמיר";
 	}
+
+	/**
+	 * Recent conclusions of prior heartbeat runs across a case's issues (#220,
+	 * "seance"). Lets a resuming agent read what earlier sessions concluded
+	 * instead of re-deriving context from scratch.
+	 */
+	async getPredecessorForCase(
+		caseNumber: string,
+		limit = 5,
+	): Promise<PredecessorResponse> {
+		return this.request(
+			`/api/operations/cases/${encodeURIComponent(caseNumber)}/predecessor?limit=${limit}`,
+		);
+	}
 }
 
 // Types
@@ -260,3 +274,21 @@ export interface QAResponse {
 	}>;
 	status: string;
 }
+
+export interface PredecessorRun {
+	run_id: string;
+	status: string;
+	started_at: string | null;
+	finished_at: string | null;
+	summary: string | null;
+	error_code: string | null;
+	session_id: string | null;
+	agent_name: string | null;
+	identifier: string | null;
+}
+
+export interface PredecessorResponse {
+	ok: boolean;
+	case_number: string;
+	runs: PredecessorRun[];
+}
diff --git a/src/worker.ts b/src/worker.ts
index 5bf7e12..9ff5690 100644
--- a/src/worker.ts
+++ b/src/worker.ts
@@ -507,6 +507,40 @@ const plugin = definePlugin({
 			},
 		);
 
+		ctx.tools.register(
+			"legal_predecessor_context",
+			{
+				displayName: "הקשר מריצות קודמות",
+				description:
+					"Recent conclusions from prior heartbeat runs on this case (the 'summary' each run left). Call this when RESUMING work on a case to see what earlier sessions already did/decided — instead of re-deriving context from scratch. Provide the case number.",
+				parametersSchema: {
+					type: "object",
+					properties: {
+						case_number: {
+							type: "string",
+							description: "Case number (e.g. 1043-02-26)",
+						},
+					},
+					required: ["case_number"],
+				},
+			},
+			async (params) => {
+				const { case_number } = params as { case_number: string };
+				const result = await api.getPredecessorForCase(case_number);
+				// Readable digest for the agent — each prior run's conclusion,
+				// newest-first, summaries trimmed to keep the wake context lean.
+				const lines = result.runs.map((r) => {
+					const summary = (r.summary ?? "").trim().slice(0, 600);
+					const when = r.finished_at ?? r.started_at ?? "";
+					return `▸ ${r.agent_name ?? "?"} · ${r.identifier ?? ""} · ${when} · ${r.status}\n${summary}`;
+				});
+				const content = lines.length
+					? lines.join("\n\n")
+					: "אין ריצות קודמות עם מסקנות לתיק זה.";
+				return { content, data: result };
+			},
+		);
+
 		// ── Events ─────────────────────────────────────────────────────
 
 		ctx.events.on("issue.created", async (event) => {