fix(pi): serialize write-leased tool batches

resources/pi-agent-server.mjs

@@ -46,6 +46,7 @@ function configureNetwork(settingsManager) {
 
 const SERVER_CHANNEL = '@makelore/server';
 const PROTOCOL_VERSION = 1;
+const PROJECT_WRITE_LEASE_TOOL_NAMES = new Set(['bash', 'edit', 'write']);
 const threads = new Map();
 const openingThreads = new Set();
 let shuttingDown = false;
@@ -106,6 +107,14 @@ function referencedEnvironmentNames(value) {
   return names;
 }
 
+function serializeProjectWriteLeaseTools(session) {
+  session.agent.state.tools = session.agent.state.tools.map((tool) => (
+    PROJECT_WRITE_LEASE_TOOL_NAMES.has(tool.name) && tool.executionMode !== 'sequential'
+      ? { ...tool, executionMode: 'sequential' }
+      : tool
+  ));
+}
+
 async function credentialStoreFor(options, providerId) {
   const models = JSON.parse(await readFile(path.join(options.configDir, 'models.json'), 'utf8'));
   const provider = record(record(models)?.providers)?.[providerId];
@@ -368,6 +377,12 @@ class AgentThread {
 
   async rebind() {
     const session = this.runtime.session;
+    // Pi prepares every tool_call hook before starting a parallel tool batch.
+    // Makelore acquires its project write lease in that hook and releases it in
+    // tool_result, so two parallel mutation tools would otherwise wait on each
+    // other before either command can start. Mark only the built-in mutation
+    // tools sequential; read-only batches retain Pi's parallel execution.
+    serializeProjectWriteLeaseTools(session);
     await session.bindExtensions({
       uiContext: this.createExtensionUiContext(),
       mode: 'rpc',