diff --git a/harness/.pi/extensions/gate/__tests__/gate_memory_promote.test.js b/harness/.pi/extensions/gate/__tests__/gate_memory_promote.test.js
index 4add0105..08f5c2e4 100644
--- a/harness/.pi/extensions/gate/__tests__/gate_memory_promote.test.js
+++ b/harness/.pi/extensions/gate/__tests__/gate_memory_promote.test.js
@@ -1,67 +1,156 @@
 const test = require("node:test");
 const assert = require("node:assert");
-const {
-  dedupePromotionCandidates,
-  promotionOptions,
-  promotionContent,
-  splitPromotionChoices,
-} = require("../../tht-gate.js");
+const { installMemoryGate } = require("../memory/index.js");
+const { createFakePi } = require("./fake_pi_runtime.js");
 
-// F8 memory-promotion gate: the candidates are DETERMINISTIC (computed by
-// `tht memory promote --preview --json`), the model only names the session.
-// These tests pin the pure candidate->widget mapping and the choice partition.
 
-const CANDIDATES = [
-  { decision_seq: 3, type: "table_promoted", subject: "fact_seeablazione",
-    detail: "tabella principale ablazioni", rationale: "scelta dal reviewer",
-    question_context: "quante ablazioni nel 2023", tables: ["fact_seeablazione"], concepts: [] },
-  { decision_seq: 5, type: "concept_clarified", subject: "paziente attivo",
-    detail: "flag_attivo = TRUE", rationale: "",
-    question_context: "quante ablazioni nel 2023", tables: [], concepts: ["paziente attivo"] },
-];
+const TABLE_CANDIDATE = {
+  decision_seq: 3,
+  type: "table_promoted",
+  subject: "fact_seeablazione",
+  detail: "tabella principale ablazioni",
+  rationale: "scelta dal reviewer",
+  question_context: "quante ablazioni nel 2023",
+  tables: ["fact_seeablazione"],
+  concepts: [],
+};
 
-test("promotionOptions maps candidates to seq-keyed options", () => {
-  assert.deepEqual(promotionOptions(dedupePromotionCandidates(CANDIDATES)), [
+const MEMORY_CANDIDATE = {
+  decision_seq: 5,
+  type: "concept_clarified",
+  subject: "paziente attivo",
+  detail: "flag_attivo = TRUE",
+  rationale: "scelta dal reviewer",
+  question_context: "quante ablazioni nel 2023",
+  tables: [],
+  concepts: ["paziente attivo"],
+};
+
+
+test("the public Memory facade owns F8 policy and mutation ordering", async () => {
+  const { pi, tools, ctx } = createFakePi();
+  const calls = [];
+  let descriptor;
+  const duplicateMemory = { ...MEMORY_CANDIDATE, decision_seq: 6 };
+  const declinedMemory = {
+    ...MEMORY_CANDIDATE,
+    decision_seq: 7,
+    subject: "ricovero indice",
+    detail: "first_event",
+  };
+  ctx.ui.input = async (title) => {
+    descriptor = JSON.parse(title);
+    calls.push(["review", descriptor.options.map((option) => option.id)]);
+    return JSON.stringify({ id: descriptor.id, choices: ["seq-5"] });
+  };
+
+  installMemoryGate(pi, {
+    workflow: {
+      activate: () => calls.push(["activate"]),
+      phase: () => ({ number: 8, id: "F8" }),
+      close: (_ctx, _session, phaseNumber, summary) => {
+        calls.push(["close", phaseNumber, summary]);
+        return null;
+      },
+    },
+    memory: {
+      execute: (_ctx, args) => {
+        calls.push(["memory-execute", args]);
+        return JSON.stringify([
+          TABLE_CANDIDATE,
+          MEMORY_CANDIDATE,
+          duplicateMemory,
+          declinedMemory,
+        ]);
+      },
+      mutate: (_ctx, args, recovery) => {
+        calls.push(["memory-mutate", args, recovery]);
+        return null;
+      },
+    },
+    ledger: {
+      record: (_ctx, session, decision, recovery) => {
+        calls.push(["ledger", session, decision, recovery]);
+        return null;
+      },
+    },
+    waitForReviewer: async (runtimeContext, widget) => {
+      const response = await runtimeContext.ui.input(JSON.stringify(widget), "");
+      return JSON.parse(response);
+    },
+    toTextResult: (text) => ({ content: [{ type: "text", text }] }),
+  });
+
+  const result = await tools.get("reviewer_memory_promote").def.execute(
+    "promote-via-facade",
+    { session: "s1" },
+    null,
+    null,
+    ctx,
+  );
+
+  assert.deepEqual(descriptor.options, [
     {
       id: "seq-5",
       label: "concept_clarified: paziente attivo",
       detail: "flag_attivo = TRUE",
-      rationale: "",
+      rationale: "scelta dal reviewer",
       meta: { question_context: "quante ablazioni nel 2023" },
+      selected: true,
+    },
+    {
+      id: "seq-7",
+      label: "concept_clarified: ricovero indice",
+      detail: "first_event",
+      rationale: "scelta dal reviewer",
+      meta: { question_context: "quante ablazioni nel 2023" },
+      selected: true,
     },
   ]);
-});
-
-test("F8 proposes semantically identical memory content only once", () => {
-  const duplicate = { ...CANDIDATES[0], decision_seq: 9 };
-  assert.deepEqual(
-    dedupePromotionCandidates([CANDIDATES[0], duplicate, CANDIDATES[1]])
-      .map((candidate) => candidate.decision_seq),
-    [5],
-  );
-});
-
-test("F8 never proposes promoted tables as memory", () => {
-  const candidates = dedupePromotionCandidates(CANDIDATES);
-  const options = promotionOptions(candidates);
-  const c = promotionContent(candidates);
-
-  assert.deepEqual(candidates.map((candidate) => candidate.type), ["concept_clarified"]);
-  assert.deepEqual(options.map((option) => option.id), ["seq-5"]);
-  assert.ok(!c.includes("fact_seeablazione"));
-  assert.ok(c.includes("flag_attivo = TRUE"));
-  assert.ok(c.includes("quante ablazioni nel 2023"));
-});
-
-test("splitPromotionChoices partitions by selection", () => {
-  const candidates = dedupePromotionCandidates(CANDIDATES);
-  const { promote, decline } = splitPromotionChoices(candidates, ["seq-5"]);
-  assert.deepEqual(promote.map((c) => c.decision_seq), [5]);
-  assert.deepEqual(decline.map((c) => c.decision_seq), []);
-});
-
-test("empty or missing choices declines everything", () => {
-  const candidates = dedupePromotionCandidates(CANDIDATES);
-  assert.equal(splitPromotionChoices(candidates, []).decline.length, 1);
-  assert.equal(splitPromotionChoices(candidates, undefined).decline.length, 1);
+  assert.deepEqual(descriptor.selected, ["seq-5", "seq-7"]);
+  assert.doesNotMatch(descriptor.content, /fact_seeablazione/);
+  assert.match(descriptor.content, /flag_attivo = TRUE/);
+  assert.deepEqual(calls.slice(0, 7), [
+    ["activate"],
+    [
+      "memory-execute",
+      ["promote", "--session", "s1", "--preview", "--json"],
+    ],
+    ["review", ["seq-5", "seq-7"]],
+    [
+      "memory-mutate",
+      ["save-one", "--session", "s1", "--decision", "5", "--json"],
+      "Recupero manuale (umano): tht memory save-one --session s1 " +
+        "--decision 5. Finora salvate: 0.",
+    ],
+    [
+      "ledger",
+      "s1",
+      {
+        type: "memory_promoted",
+        subject: "paziente attivo",
+        detail: "seq:5",
+        rationale: "scelta dal reviewer",
+      },
+      "Memoria salvata nel vectordb ma decisione memory_promoted NON registrata: " +
+        "recupero manuale (umano) con tht decision add --session s1 " +
+        "--type memory_promoted --subject \"paziente attivo\" --detail seq:5.",
+    ],
+    [
+      "ledger",
+      "s1",
+      {
+        type: "memory_promotion_declined",
+        subject: "ricovero indice",
+        detail: "seq:7",
+      },
+      "",
+    ],
+    [
+      "close",
+      8,
+      "Promozione registrata: 1 memorie salvate nel vectordb, 1 candidati scartati.",
+    ],
+  ]);
+  assert.match(result.content[0].text, /1 memorie salvate.*1 candidati scartati/);
 });
diff --git a/harness/.pi/extensions/gate/memory/index.js b/harness/.pi/extensions/gate/memory/index.js
new file mode 100644
index 00000000..a5d9dfb1
--- /dev/null
+++ b/harness/.pi/extensions/gate/memory/index.js
@@ -0,0 +1,210 @@
+import { Type } from "typebox";
+
+import { buildMultiselectRequest } from "../builders.js";
+
+
+function normalizedText(value) {
+	return String(value ?? "").trim().replace(/\s+/g, " ").toLowerCase();
+}
+
+
+// The candidates come from `tht memory promote --preview --json` (deterministic,
+// reviewer-approved decisions only); the model never authors them.
+function dedupePromotionCandidates(candidates) {
+	const seen = new Set();
+	return candidates.filter((candidate) => {
+		if (candidate.type !== "concept_clarified") return false;
+		const key = [
+			candidate.type,
+			candidate.subject,
+			candidate.detail,
+			candidate.rationale,
+			candidate.question_context,
+		].map(normalizedText).join("\u0000");
+		if (seen.has(key)) return false;
+		seen.add(key);
+		return true;
+	});
+}
+
+
+function promotionOptions(candidates) {
+	return candidates.map((candidate) => ({
+		id: `seq-${candidate.decision_seq}`,
+		label: `${candidate.type}: ${candidate.subject}`,
+		detail: candidate.detail || "",
+		rationale: candidate.rationale || "",
+		meta: { question_context: candidate.question_context || "" },
+	}));
+}
+
+
+function promotionContent(candidates) {
+	return candidates
+		.map(
+			(candidate) =>
+				`- **${candidate.type}: ${candidate.subject}** (decisione #${candidate.decision_seq})\n` +
+				`  ${candidate.detail || ""}\n` +
+				`  Motivo: ${candidate.rationale || "—"}\n` +
+				`  Domanda di contesto: ${candidate.question_context || "—"}`,
+		)
+		.join("\n");
+}
+
+
+function splitPromotionChoices(candidates, choices) {
+	const chosen = new Set(choices ?? []);
+	const promote = [];
+	const decline = [];
+	for (const candidate of candidates) {
+		(chosen.has(`seq-${candidate.decision_seq}`) ? promote : decline).push(candidate);
+	}
+	return { promote, decline };
+}
+
+
+/**
+ * Install the public F8 Memory tool against the narrow capability supplied by the
+ * workflow composition root. Memory owns candidate policy, presentation and mutation
+ * order; the capability keeps shared phase, ledger and persistence mechanisms in core.
+ */
+export function installMemoryGate(
+	pi,
+	{ workflow, memory, ledger, waitForReviewer, toTextResult },
+) {
+	// Compatibility note: these labels move verbatim from the composition root.
+	// Ticket #22 requires byte-for-byte observable parity; translating existing chrome
+	// is a separate product behavior change rather than part of this extraction.
+	pi.registerTool({
+		name: "reviewer_memory_promote",
+		label: "Promozione memorie riusabili (reviewer)",
+		description:
+			"F8 (prima della chiusura di fase): propone al reviewer i candidati di promozione " +
+			"calcolati dalla CLI (tht memory promote --preview: solo concept_clarified, " +
+			"max 5, esclusi i gia' promossi/rifiutati). Le selezioni " +
+			"vengono salvate nel vectordb (tht memory save-one) e registrate come memory_promoted; " +
+			"le deselezioni come memory_promotion_declined (non riproposte). Nessun parametro oltre " +
+			"alla sessione: i candidati sono deterministici, NON li scrivi tu. Registrata la " +
+			"promozione, in F8 il gate chiude la fase e finalizza la sessione da solo: NON " +
+			"presentare un reviewer_confirm dopo.",
+		parameters: Type.Object({
+			session: Type.String(),
+		}),
+		async execute(_id, params, _signal, _onUpdate, ctx) {
+			workflow.activate();
+			try {
+				const { session } = params;
+				const phase = workflow.phase(ctx, session);
+				let candidates;
+				try {
+					candidates = JSON.parse(memory.execute(
+						ctx,
+						["promote", "--session", session, "--preview", "--json"],
+					));
+				} catch (error) {
+					const message = (error.stderr || error.message || String(error)).toString().trim();
+					return toTextResult(`Preview di promozione non disponibile: ${message}`);
+				}
+				if (!Array.isArray(candidates) || candidates.length === 0) {
+					await ctx.ui.notify(
+						"Nessuna decisione riusabile da promuovere in memoria per questa sessione.",
+						"info",
+					);
+					const closed = workflow.close(
+						ctx, session, phase.number, "Nessun candidato di promozione.",
+					);
+					if (closed) return closed;
+					return toTextResult(
+						"Nessun candidato di promozione: prosegui con la chiusura della sessione.",
+					);
+				}
+				candidates = dedupePromotionCandidates(candidates);
+				if (candidates.length === 0) {
+					await ctx.ui.notify(
+						"Nessun concetto chiarito da salvare come memory per questa sessione.",
+						"info",
+					);
+					const closed = workflow.close(
+						ctx, session, phase.number, "Nessun candidato di promozione.",
+					);
+					if (closed) return closed;
+					return toTextResult(
+						"Nessun candidato di promozione: prosegui con la chiusura della sessione.",
+					);
+				}
+				const options = promotionOptions(candidates);
+				const widget = buildMultiselectRequest({
+					id: `u${Date.now()}`,
+					phase: phase.id,
+					title: "Quali concetti chiariti salvare nella memoria riutilizzabile?",
+					allowEmpty: true,
+					options,
+					selected: options.map((option) => option.id),
+					content: promotionContent(candidates),
+				});
+				const response = await waitForReviewer(ctx, widget);
+				if (response.control === "freetext") {
+					return toTextResult(
+						`Altro (reviewer): ${response.text}. Valuta e ripresenta il gate.`,
+					);
+				}
+				if (response.control === "back") {
+					return toTextResult("Il reviewer vuole tornare indietro.");
+				}
+				if (response.control === "exit") {
+					return toTextResult("Il reviewer vuole uscire.");
+				}
+				const { promote, decline } = splitPromotionChoices(candidates, response.choices);
+				let saved = 0;
+				for (const candidate of promote) {
+					const saveError = memory.mutate(
+						ctx,
+						[
+							"save-one", "--session", session,
+							"--decision", String(candidate.decision_seq), "--json",
+						],
+						`Recupero manuale (umano): tht memory save-one --session ${session} ` +
+							`--decision ${candidate.decision_seq}. Finora salvate: ${saved}.`,
+					);
+					if (saveError) return saveError;
+					const ledgerError = ledger.record(
+						ctx,
+						session,
+						{
+							type: "memory_promoted",
+							subject: candidate.subject,
+							detail: `seq:${candidate.decision_seq}`,
+							rationale: candidate.rationale || candidate.detail || "",
+						},
+						"Memoria salvata nel vectordb ma decisione memory_promoted NON registrata: " +
+							`recupero manuale (umano) con tht decision add --session ${session} ` +
+							`--type memory_promoted --subject "${candidate.subject}" ` +
+							`--detail seq:${candidate.decision_seq}.`,
+					);
+					if (ledgerError) return ledgerError;
+					saved++;
+				}
+				for (const candidate of decline) {
+					const ledgerError = ledger.record(ctx, session, {
+						type: "memory_promotion_declined",
+						subject: candidate.subject,
+						detail: `seq:${candidate.decision_seq}`,
+					}, "");
+					if (ledgerError) return ledgerError;
+				}
+				const summary =
+					`Promozione registrata: ${saved} memorie salvate nel vectordb, ` +
+					`${decline.length} candidati scartati.`;
+				const closed = workflow.close(ctx, session, phase.number, summary);
+				if (closed) return closed;
+				return toTextResult(summary);
+			} catch (fatal) {
+				const message = (fatal.stderr || fatal.message || String(fatal)).toString().trim();
+				return toTextResult(
+					`[reviewer_memory_promote ERRORE INTERNO] ${message}. ` +
+					"Riprova o usa un approccio diverso.",
+				);
+			}
+		},
+	});
+}
diff --git a/harness/.pi/extensions/tht-gate.js b/harness/.pi/extensions/tht-gate.js
index 6b3be7f1..25c5f9c5 100644
--- a/harness/.pi/extensions/tht-gate.js
+++ b/harness/.pi/extensions/tht-gate.js
@@ -18,10 +18,8 @@
 //    auto-advance not ready -> silent no-op)
 //  - textResult / tht() / relayIfThtFails / advanceIfReady helpers
 //
-// TESTING: the pure builders are L1-tested (./gate/__tests__/). This file is the
-// GLUE -- it depends on the Pi runtime (pi.on, pi.registerTool, ctx.sendRaw) and is
-// verified end-to-end at L2 (Task D4). It is intentionally NOT unit-tested here; a
-// fake-Pi runtime mock (cross-cutting follow-up) would let it run in CI.
+// TESTING: pure builders and domain modules are L1-tested under ./gate/__tests__/.
+// The composition root is exercised through the fake Pi runtime and live at L2.
 
 import { execFileSync } from "node:child_process";
 import { readFileSync } from "node:fs";
@@ -46,6 +44,7 @@ import {
 	enrichPhaseSummaryV2,
 	appendLedgerSection,
 } from "./gate/enrich.js";
+import { installMemoryGate } from "./gate/memory/index.js";
 import { isReserved } from "./reserved-labels.mjs";
 
 // Load the workflow contract once when Pi loads the extension. Asking the model to
@@ -625,58 +624,6 @@ export function normalizeMemoryOptions(options) {
 	return out;
 }
 
-// --- F8 memory-promotion gate: pure candidate->widget mapping (L1-tested) ------
-// The candidates come from `tht memory promote --preview --json` (deterministic,
-// reviewer-approved decisions only); the model never authors them.
-export function dedupePromotionCandidates(candidates) {
-	const seen = new Set();
-	return candidates.filter((candidate) => {
-		if (candidate.type !== "concept_clarified") return false;
-		const key = [
-			candidate.type,
-			candidate.subject,
-			candidate.detail,
-			candidate.rationale,
-			candidate.question_context,
-		].map(normalizedText).join("\u0000");
-		if (seen.has(key)) return false;
-		seen.add(key);
-		return true;
-	});
-}
-
-export function promotionOptions(candidates) {
-	return candidates.map((c) => ({
-		id: `seq-${c.decision_seq}`,
-		label: `${c.type}: ${c.subject}`,
-		detail: c.detail || "",
-		rationale: c.rationale || "",
-		meta: { question_context: c.question_context || "" },
-	}));
-}
-
-export function promotionContent(candidates) {
-	return candidates
-		.map(
-			(c) =>
-				`- **${c.type}: ${c.subject}** (decisione #${c.decision_seq})\n` +
-				`  ${c.detail || ""}\n` +
-				`  Motivo: ${c.rationale || "—"}\n` +
-				`  Domanda di contesto: ${c.question_context || "—"}`,
-		)
-		.join("\n");
-}
-
-export function splitPromotionChoices(candidates, choices) {
-	const chosen = new Set(choices ?? []);
-	const promote = [];
-	const decline = [];
-	for (const c of candidates) {
-		(chosen.has(`seq-${c.decision_seq}`) ? promote : decline).push(c);
-	}
-	return { promote, decline };
-}
-
 export async function emitAndWait(ctx, descriptor) {
 	for (;;) {
 		const value = await ctx.ui.input(JSON.stringify(descriptor), "");
@@ -1687,114 +1634,30 @@ export default function (pi) {
 		);
 	}
 
-	pi.registerTool({
-		name: "reviewer_memory_promote",
-		label: "Promozione memorie riusabili (reviewer)",
-		description:
-			"F8 (prima della chiusura di fase): propone al reviewer i candidati di promozione " +
-			"calcolati dalla CLI (tht memory promote --preview: solo concept_clarified, " +
-			"max 5, esclusi i gia' promossi/rifiutati). Le selezioni " +
-			"vengono salvate nel vectordb (tht memory save-one) e registrate come memory_promoted; " +
-			"le deselezioni come memory_promotion_declined (non riproposte). Nessun parametro oltre " +
-			"alla sessione: i candidati sono deterministici, NON li scrivi tu. Registrata la " +
-			"promozione, in F8 il gate chiude la fase e finalizza la sessione da solo: NON " +
-			"presentare un reviewer_confirm dopo.",
-		parameters: Type.Object({
-			session: Type.String(),
-		}),
-		async execute(_id, params, _signal, _onUpdate, ctx) {
-			lockActive = true;
-			try {
-			const { session } = params;
-			const curNum = currentPhase(ctx, session);
-			const phase = phaseId(ctx, curNum);
-			let candidates;
-			try {
-				candidates = JSON.parse(
-					tht(ctx, ["memory", "promote", "--session", session, "--preview", "--json"]),
-				);
-			} catch (e) {
-				const msg = (e.stderr || e.message || String(e)).toString().trim();
-				return textResult(`Preview di promozione non disponibile: ${msg}`);
-			}
-			if (!Array.isArray(candidates) || candidates.length === 0) {
-				await ctx.ui.notify(
-					"Nessuna decisione riusabile da promuovere in memoria per questa sessione.",
-					"info",
-				);
-				const closed = closeAfterPromotion(
-					ctx, session, curNum, "Nessun candidato di promozione.",
-				);
-				if (closed) return closed;
-				return textResult(
-					"Nessun candidato di promozione: prosegui con la chiusura della sessione.",
-				);
-			}
-			candidates = dedupePromotionCandidates(candidates);
-			if (candidates.length === 0) {
-				await ctx.ui.notify(
-					"Nessun concetto chiarito da salvare come memory per questa sessione.",
-					"info",
-				);
-				const closed = closeAfterPromotion(
-					ctx, session, curNum, "Nessun candidato di promozione.",
-				);
-				if (closed) return closed;
-				return textResult(
-					"Nessun candidato di promozione: prosegui con la chiusura della sessione.",
-				);
-			}
-			const options = promotionOptions(candidates);
-			const widget = buildMultiselectRequest({
-				id: `u${Date.now()}`,
-				phase,
-				title: "Quali concetti chiariti salvare nella memoria riutilizzabile?",
-				allowEmpty: true,
-				options,
-				selected: options.map((o) => o.id),
-				content: promotionContent(candidates),
-			});
-			const resp = await emitAndWait(ctx, widget);
-			if (resp.control === "freetext")
-				return textResult(`Altro (reviewer): ${resp.text}. Valuta e ripresenta il gate.`);
-			if (resp.control === "back")
-				return textResult("Il reviewer vuole tornare indietro.");
-			if (resp.control === "exit") return textResult("Il reviewer vuole uscire.");
-			const { promote, decline } = splitPromotionChoices(candidates, resp.choices);
-			let saved = 0;
-			for (const c of promote) {
-				const err = relayIfThtFails(
-					ctx,
-					["memory", "save-one", "--session", session,
-						"--decision", String(c.decision_seq), "--json"],
-					`Recupero manuale (umano): tht memory save-one --session ${session} --decision ${c.decision_seq}. Finora salvate: ${saved}.`,
-				);
-				if (err) return err;
-				const e2 = relayIfThtFails(ctx, decisionAddArgs(session, {
-					type: "memory_promoted", subject: c.subject,
-					detail: `seq:${c.decision_seq}`, rationale: c.rationale || c.detail || "",
-				}), `Memoria salvata nel vectordb ma decisione memory_promoted NON registrata: recupero manuale (umano) con tht decision add --session ${session} --type memory_promoted --subject "${c.subject}" --detail seq:${c.decision_seq}.`);
-				if (e2) return e2;
-				saved++;
-			}
-			for (const c of decline) {
-				const err = relayIfThtFails(ctx, decisionAddArgs(session, {
-					type: "memory_promotion_declined", subject: c.subject,
-					detail: `seq:${c.decision_seq}`,
-				}), "");
-				if (err) return err;
-			}
-			const summary =
-				`Promozione registrata: ${saved} memorie salvate nel vectordb, ` +
-				`${decline.length} candidati scartati.`;
-			const closed = closeAfterPromotion(ctx, session, curNum, summary);
-			if (closed) return closed;
-			return textResult(summary);
-			} catch (fatal) {
-				const msg = (fatal.stderr || fatal.message || String(fatal)).toString().trim();
-				return textResult(`[reviewer_memory_promote ERRORE INTERNO] ${msg}. Riprova o usa un approccio diverso.`);
-			}
+	installMemoryGate(pi, {
+		workflow: {
+			activate: () => {
+				lockActive = true;
+			},
+			phase: (ctx, session) => {
+				const number = currentPhase(ctx, session);
+				return { number, id: phaseId(ctx, number) };
+			},
+			close: closeAfterPromotion,
 		},
+		memory: {
+			execute: (ctx, args) => tht(ctx, ["memory", ...args]),
+			mutate: (ctx, args, recovery) => relayIfThtFails(
+				ctx, ["memory", ...args], recovery,
+			),
+		},
+		ledger: {
+			record: (ctx, session, decision, recovery) => relayIfThtFails(
+				ctx, decisionAddArgs(session, decision), recovery,
+			),
+		},
+		waitForReviewer: emitAndWait,
+		toTextResult: textResult,
 	});
 
 	pi.registerTool({