feat: run pi agent sessions at high thinking level (#475)

apps/worker/src/ai/pi/capella-agent-executor.ts

@@ -32,6 +32,7 @@ import type {
   CapellaTool,
 } from './capella-agent-types.js';
 import { PI_RETRY_SETTINGS } from './retry-settings.js';
+import { PI_THINKING_LEVEL } from './thinking-level.js';
 
 const MAX_ERROR_LENGTH = 2_000;
 const MAX_TOOLS_PER_SESSION = 32;
@@ -393,6 +394,7 @@ class StandaloneCapellaAgentExecutor implements CapellaAgentExecutor {
         cwd: request.cwd,
         agentDir,
         model: selection.model,
+        thinkingLevel: PI_THINKING_LEVEL,
         modelRuntime: selection.modelRuntime,
         noTools: 'all',
         tools: toolNames,

apps/worker/src/ai/pi/pi-executor.ts

@@ -48,6 +48,7 @@ import { permissionSystemConfigExists, permissionSystemPackageDir } from './perm
 import { PI_RETRY_SETTINGS } from './retry-settings.js';
 import { createGlobTool, createTodoWriteTool } from './session-tools.js';
 import { createTaskTool } from './task-tool.js';
+import { PI_THINKING_LEVEL } from './thinking-level.js';
 import { TraceEmitter } from './trace-emitter.js';
 import { providerTurnError, type SafeProviderTurnDetails, safeProviderTurnDetails } from './turn-error.js';
 
@@ -332,6 +333,7 @@ export async function runPiPrompt(
     ({ session } = await createAgentSession({
       cwd: sourceDir,
       model: selection.model,
+      thinkingLevel: PI_THINKING_LEVEL,
       tools,
       customTools,
       modelRuntime: selection.modelRuntime,

apps/worker/src/ai/pi/task-formation-executor.ts

@@ -29,6 +29,7 @@ import type { ValidatingSubmitTool } from '../reconciliation/submit-validation.j
 import { ConfinementError, compileRepositoryGlob, RepositoryConfinement } from '../sast/capella/tools/confinement.js';
 import { createCapellaRepositoryTools } from '../sast/capella/tools/repository-tools.js';
 import { PI_RETRY_SETTINGS } from './retry-settings.js';
+import { PI_THINKING_LEVEL } from './thinking-level.js';
 
 const DEFAULT_TIMEOUT_MS = 30 * 60 * 1_000;
 const DEFAULT_MAX_TURNS = 64;
@@ -527,6 +528,7 @@ class StandaloneTaskFormationExecutor implements TaskFormationExecutor {
         cwd: request.cwd,
         agentDir,
         model: selection.model,
+        thinkingLevel: PI_THINKING_LEVEL,
         modelRuntime: selection.modelRuntime,
         noTools: 'all',
         tools: toolNames,

apps/worker/src/ai/pi/task-tool.ts

@@ -19,6 +19,7 @@ import {
 } from '@earendil-works/pi-coding-agent';
 import { type LoggableAgentName, normalizeSemanticLabel } from '../../audit/safe-fields.js';
 import { PI_RETRY_SETTINGS } from './retry-settings.js';
+import { PI_THINKING_LEVEL } from './thinking-level.js';
 import { TraceEmitter } from './trace-emitter.js';
 
 export interface TaskToolContext {
@@ -135,6 +136,7 @@ export function createTaskTool(config: TaskToolContext): ToolDefinition {
           agentDir,
           resourceLoader,
           model: config.model,
+          thinkingLevel: PI_THINKING_LEVEL,
           tools: CHILD_TOOLS,
           modelRuntime: config.modelRuntime,
           sessionManager: SessionManager.inMemory(config.cwd),

apps/worker/src/ai/pi/thinking-level.ts

@@ -0,0 +1,10 @@
+// Copyright (C) 2026 Keygraph, Inc.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License version 3
+// as published by the Free Software Foundation.
+
+import type { ThinkingLevel } from '@earendil-works/pi-agent-core';
+
+/** Thinking level for every pi agent session, raised above pi's default for deeper analysis. */
+export const PI_THINKING_LEVEL: ThinkingLevel = 'high';