fix: add compaction headroom for memory writes

src/agents/pi-embedded-runner.ts

@@ -69,6 +69,7 @@ import {
 import { normalizeModelCompat } from "./model-compat.js";
 import { ensureClawdbotModelsJson } from "./models-config.js";
 import type { MessagingToolSend } from "./pi-embedded-messaging.js";
+import { ensurePiCompactionReserveTokens } from "./pi-settings.js";
 import { acquireSessionWriteLock } from "./session-write-lock.js";
 
 export type { MessagingToolSend } from "./pi-embedded-messaging.js";
@@ -981,6 +982,7 @@ export async function compactEmbeddedPiSession(params: {
             effectiveWorkspace,
             agentDir,
           );
+          ensurePiCompactionReserveTokens({ settingsManager });
           const additionalExtensionPaths = buildEmbeddedExtensionPaths({
             cfg: params.config,
             sessionManager,
@@ -1369,6 +1371,7 @@ export async function runEmbeddedPiAgent(params: {
             effectiveWorkspace,
             agentDir,
           );
+          ensurePiCompactionReserveTokens({ settingsManager });
           const additionalExtensionPaths = buildEmbeddedExtensionPaths({
             cfg: params.config,
             sessionManager,