refactor(worker): rename claude-executor to pi-executor

apps/worker/src/ai/models.ts

@@ -106,7 +106,7 @@ export function resolveModelId(tier: ModelTier = 'medium', providerConfig?: Prov
 /**
  * Resolve the thinking level for a run.
  *
- * The Claude Agent SDK enabled "adaptive" thinking only on capable models; pi uses
+ * The previous harness enabled "adaptive" thinking only on capable models; pi uses
  * explicit levels and clamps to model capability internally. We default to 'medium'
  * and honour the existing CLAUDE_ADAPTIVE_THINKING=false kill switch (→ 'off'). An
  * explicit CLAUDE_THINKING_LEVEL wins when set.

apps/worker/src/ai/output-formatters.ts

@@ -326,7 +326,7 @@ export function formatErrorOutput(
   } else if (context.useCleanOutput) {
     lines.push(`${context.agentType} failed (${formatDuration(duration)})`);
   } else {
-    lines.push(`  Claude Code failed: ${description} (${formatDuration(duration)})`);
+    lines.push(`  pi agent failed: ${description} (${formatDuration(duration)})`);
   }
 
   lines.push(`    Error Type: ${error.constructor.name}`);
@@ -360,7 +360,7 @@ export function formatCompletionMessage(
     return `${context.agentType.charAt(0).toUpperCase() + context.agentType.slice(1)} complete! (${turnCount} turns, ${formatDuration(duration)})`;
   }
 
-  return `  Claude Code completed: ${description} (${turnCount} turns) in ${formatDuration(duration)}`;
+  return `  pi agent completed: ${description} (${turnCount} turns) in ${formatDuration(duration)}`;
 }
 
 export function formatToolUseOutput(toolName: string, input: Record<string, unknown> | undefined): string[] {

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

@@ -78,7 +78,7 @@ async function buildPermissionResourceLoader(cwd: string, logger: ActivityLogger
   return loader;
 }
 
-export interface ClaudePromptResult {
+export interface PiPromptResult {
   result?: string | null | undefined;
   success: boolean;
   duration: number;
@@ -109,7 +109,7 @@ async function writeErrorLog(
   try {
     const errorLog = {
       timestamp: formatTimestamp(),
-      agent: 'claude-executor',
+      agent: 'pi-executor',
       error: { name: err.constructor.name, message: err.message, code: err.code, status: err.status, stack: err.stack },
       context: { sourceDir, prompt: `${fullPrompt.slice(0, 200)}...`, retryable: isRetryableError(err) },
       duration,
@@ -122,7 +122,7 @@ async function writeErrorLog(
 }
 
 export async function validateAgentOutput(
-  result: ClaudePromptResult,
+  result: PiPromptResult,
   agentName: string | null,
   sourceDir: string,
   logger: ActivityLogger,
@@ -187,11 +187,11 @@ function classifyErrorText(content: string): PentestError | null {
 
 // Low-level pi execution. Drives one agent session to completion with progress and
 // audit logging. Exported for Temporal activities to call single-attempt execution.
-export async function runClaudePrompt(
+export async function runPiPrompt(
   prompt: string,
   sourceDir: string,
   context: string = '',
-  description: string = 'Claude analysis',
+  description: string = 'Agent analysis',
   _agentName: string | null = null,
   auditSession: AuditSession | null = null,
   logger: ActivityLogger,
@@ -200,7 +200,7 @@ export async function runClaudePrompt(
   apiKey?: string,
   deliverablesSubdir?: string,
   providerConfig?: import('../types/config.js').ProviderConfig,
-): Promise<ClaudePromptResult> {
+): Promise<PiPromptResult> {
   // 1. Initialize timing and prompt
   const timer = new Timer(`agent-${description.toLowerCase().replace(/\s+/g, '-')}`);
   const fullPrompt = context ? `${context}\n\n${prompt}` : prompt;

apps/worker/src/ai/settings-writer.ts

@@ -6,7 +6,7 @@
 
 /**
  * Writes the @gotgenes/pi-permission-system global config from `code_path` avoid
- * patterns. The executor loads the extension (see claude-executor) and pi enforces
+ * patterns. The executor loads the extension (see pi-executor) and pi enforces
  * these path denies at the tool layer for every agent. Written to the global config
  * dir under `agentDir` — the project-scoped path is gated behind project trust,
  * which our headless runs do not grant; the global path is not.

apps/worker/src/ai/tools.ts

@@ -7,7 +7,7 @@
 /**
  * Universal custom tools registered for every agent: `task` and `todo_write`.
  *
- * These replace the Claude Agent SDK built-ins that pi does not ship. `task`
+ * These replace the previous harness built-ins that pi does not ship. `task`
  * delegates a focused analysis to an in-process read-only child session (the
  * Task sub-agent replacement); `todo_write` is a full-state-replace planning
  * scratchpad mirrored to the workflow log.
@@ -116,7 +116,7 @@ function renderTodos(todos: readonly TodoItem[]): string {
 /**
  * The `todo_write` tool — a full-state-replace planning scratchpad.
  *
- * Mirrors Claude Code's TodoWrite: each call carries the entire list and replaces
+ * Mirrors the TodoWrite tool: each call carries the entire list and replaces
  * stored state (no append/merge). No deliverable impact; every call is echoed to
  * the workflow log so `shannon logs` shows the agent's live plan. State is per
  * tool instance (one per agent execution).