refactor: finish companion rename migration

Complete the remaining pi-to-companion rename across companion-os, web, vm-orchestrator, docker, and archived fixtures.

Verification:
- semantic rg sweeps for Pi/piConfig/getPi/.pi runtime references
- npm run check in apps/companion-os (fails in this worktree: biome not found)

Co-authored-by: Codex <noreply@openai.com>

packages/agent/CHANGELOG.md

@@ -46,7 +46,7 @@
 
 ### Fixed
 
-- Fixed `continue()` to resume queued steering/follow-up messages when context currently ends in an assistant message, and preserved one-at-a-time steering ordering during assistant-tail resumes ([#1312](https://github.com/badlogic/pi-mono/pull/1312) by [@ferologics](https://github.com/ferologics))
+- Fixed `continue()` to resume queued steering/follow-up messages when context currently ends in an assistant message, and preserved one-at-a-time steering ordering during assistant-tail resumes ([#1312](https://github.com/badlogic/companion-mono/pull/1312) by [@ferologics](https://github.com/ferologics))
 
 ## [0.52.6] - 2026-02-05
 
@@ -82,7 +82,7 @@
 
 ### Added
 
-- Added `maxRetryDelayMs` option to `AgentOptions` to cap server-requested retry delays. Passed through to the underlying stream function. ([#1123](https://github.com/badlogic/pi-mono/issues/1123))
+- Added `maxRetryDelayMs` option to `AgentOptions` to cap server-requested retry delays. Passed through to the underlying stream function. ([#1123](https://github.com/badlogic/companion-mono/issues/1123))
 
 ## [0.50.7] - 2026-01-31
 
@@ -158,7 +158,7 @@
 
 ### Added
 
-- `thinkingBudgets` option on `Agent` and `AgentOptions` to customize token budgets per thinking level ([#529](https://github.com/badlogic/pi-mono/pull/529) by [@melihmucuk](https://github.com/melihmucuk))
+- `thinkingBudgets` option on `Agent` and `AgentOptions` to customize token budgets per thinking level ([#529](https://github.com/badlogic/companion-mono/pull/529) by [@melihmucuk](https://github.com/melihmucuk))
 
 ## [0.37.8] - 2026-01-07
 
@@ -208,7 +208,7 @@
 
 ### Breaking Changes
 
-- **Queue API replaced with steer/followUp**: The `queueMessage()` method has been split into two methods with different delivery semantics ([#403](https://github.com/badlogic/pi-mono/issues/403)):
+- **Queue API replaced with steer/followUp**: The `queueMessage()` method has been split into two methods with different delivery semantics ([#403](https://github.com/badlogic/companion-mono/issues/403)):
   - `steer(msg)`: Interrupts the agent mid-run. Delivered after current tool execution, skips remaining tools.
   - `followUp(msg)`: Waits until the agent finishes. Delivered only when there are no more tool calls or steering messages.
 - **Queue mode renamed**: `queueMode` option renamed to `steeringMode`. Added new `followUpMode` option. Both control whether messages are delivered one-at-a-time or all at once.
@@ -241,11 +241,11 @@
 
 - **`UserMessageWithAttachments` and `Attachment` types removed**: Attachment handling is now the responsibility of the `convertToLlm` function.
 
-- **Agent loop moved from `@mariozechner/pi-ai`**: The `agentLoop`, `agentLoopContinue`, and related types have moved to this package. Import from `@mariozechner/pi-agent-core` instead.
+- **Agent loop moved from `@mariozechner/companion-ai`**: The `agentLoop`, `agentLoopContinue`, and related types have moved to this package. Import from `@mariozechner/companion-agent-core` instead.
 
 ### Added
 
-- `streamFn` option on `Agent` for custom stream implementations. Default uses `streamSimple` from pi-ai.
+- `streamFn` option on `Agent` for custom stream implementations. Default uses `streamSimple` from companion-ai.
 
 - `streamProxy()` utility function for browser apps that need to proxy LLM calls through a backend server. Replaces the removed `AppTransport`.
 

packages/agent/README.md

@@ -1,18 +1,18 @@
-# @mariozechner/pi-agent-core
+# @mariozechner/companion-agent-core
 
-Stateful agent with tool execution and event streaming. Built on `@mariozechner/pi-ai`.
+Stateful agent with tool execution and event streaming. Built on `@mariozechner/companion-ai`.
 
 ## Installation
 
 ```bash
-npm install @mariozechner/pi-agent-core
+npm install @mariozechner/companion-agent-core
 ```
 
 ## Quick Start
 
 ```typescript
-import { Agent } from "@mariozechner/pi-agent-core";
-import { getModel } from "@mariozechner/pi-ai";
+import { Agent } from "@mariozechner/companion-agent-core";
+import { getModel } from "@mariozechner/companion-ai";
 
 const agent = new Agent({
   initialState: {
@@ -298,7 +298,7 @@ Follow-up messages are checked only when there are no more tool calls and no ste
 Extend `AgentMessage` via declaration merging:
 
 ```typescript
-declare module "@mariozechner/pi-agent-core" {
+declare module "@mariozechner/companion-agent-core" {
   interface CustomAgentMessages {
     notification: { role: "notification"; text: string; timestamp: number };
   }
@@ -378,7 +378,7 @@ Thrown errors are caught by the agent and reported to the LLM as tool errors wit
 For browser apps that proxy through a backend:
 
 ```typescript
-import { Agent, streamProxy } from "@mariozechner/pi-agent-core";
+import { Agent, streamProxy } from "@mariozechner/companion-agent-core";
 
 const agent = new Agent({
   streamFn: (model, context, options) =>
@@ -395,7 +395,7 @@ const agent = new Agent({
 For direct control without the Agent class:
 
 ```typescript
-import { agentLoop, agentLoopContinue } from "@mariozechner/pi-agent-core";
+import { agentLoop, agentLoopContinue } from "@mariozechner/companion-agent-core";
 
 const context: AgentContext = {
   systemPrompt: "You are helpful.",

packages/agent/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@mariozechner/pi-agent-core",
+  "name": "@mariozechner/companion-agent-core",
   "version": "0.56.2",
   "description": "General-purpose agent with transport abstraction, state management, and attachment support",
   "type": "module",
@@ -17,7 +17,7 @@
     "prepublishOnly": "npm run clean && npm run build"
   },
   "dependencies": {
-    "@mariozechner/pi-ai": "^0.56.2"
+    "@mariozechner/companion-ai": "^0.56.2"
   },
   "keywords": [
     "ai",

packages/agent/src/agent-loop.ts

@@ -10,7 +10,7 @@ import {
   streamSimple,
   type ToolResultMessage,
   validateToolArguments,
-} from "@mariozechner/pi-ai";
+} from "@mariozechner/companion-ai";
 import type {
   AgentContext,
   AgentEvent,

packages/agent/src/agent.ts

@@ -12,7 +12,7 @@ import {
   type TextContent,
   type ThinkingBudgets,
   type Transport,
-} from "@mariozechner/pi-ai";
+} from "@mariozechner/companion-ai";
 import { agentLoop, agentLoopContinue } from "./agent-loop.js";
 import type {
   AgentContext,

packages/agent/src/proxy.ts

@@ -14,7 +14,7 @@ import {
   type SimpleStreamOptions,
   type StopReason,
   type ToolCall,
-} from "@mariozechner/pi-ai";
+} from "@mariozechner/companion-ai";
 
 // Create stream class matching ProxyMessageEventStream
 class ProxyMessageEventStream extends EventStream<

packages/agent/src/types.ts

@@ -8,7 +8,7 @@ import type {
   TextContent,
   Tool,
   ToolResultMessage,
-} from "@mariozechner/pi-ai";
+} from "@mariozechner/companion-ai";
 import type { Static, TSchema } from "@sinclair/typebox";
 
 /** Stream function - can return sync or Promise for async config lookup */

packages/agent/test/agent-loop.test.ts

@@ -5,7 +5,7 @@ import {
   type Message,
   type Model,
   type UserMessage,
-} from "@mariozechner/pi-ai";
+} from "@mariozechner/companion-ai";
 import { Type } from "@sinclair/typebox";
 import { describe, expect, it } from "vitest";
 import { agentLoop, agentLoopContinue } from "../src/agent-loop.js";

packages/agent/test/agent.test.ts

@@ -3,7 +3,7 @@ import {
   type AssistantMessageEvent,
   EventStream,
   getModel,
-} from "@mariozechner/pi-ai";
+} from "@mariozechner/companion-ai";
 import { describe, expect, it } from "vitest";
 import { Agent } from "../src/index.js";
 

packages/agent/test/bedrock-models.test.ts

@@ -9,7 +9,7 @@
  *
  * You can run this test suite with:
  * ```bash
- * $ AWS_REGION=us-east-1 BEDROCK_EXTENSIVE_MODEL_TEST=1 AWS_PROFILE=pi npm test -- ./test/bedrock-models.test.ts
+ * $ AWS_REGION=us-east-1 BEDROCK_EXTENSIVE_MODEL_TEST=1 AWS_PROFILE=companion npm test -- ./test/bedrock-models.test.ts
  * ```
  *
  * ## Known Issues by Category
@@ -21,8 +21,8 @@
  * 5. **Invalid Signature Format**: Model validates signature format (Anthropic newer models).
  */
 
-import type { AssistantMessage } from "@mariozechner/pi-ai";
-import { getModels } from "@mariozechner/pi-ai";
+import type { AssistantMessage } from "@mariozechner/companion-ai";
+import { getModels } from "@mariozechner/companion-ai";
 import { describe, expect, it } from "vitest";
 import { Agent } from "../src/index.js";
 import { hasBedrockCredentials } from "./bedrock-utils.js";

packages/agent/test/e2e.test.ts

@@ -3,8 +3,8 @@ import type {
   Model,
   ToolResultMessage,
   UserMessage,
-} from "@mariozechner/pi-ai";
-import { getModel } from "@mariozechner/pi-ai";
+} from "@mariozechner/companion-ai";
+import { getModel } from "@mariozechner/companion-ai";
 import { describe, expect, it } from "vitest";
 import { Agent } from "../src/index.js";
 import { hasBedrockCredentials } from "./bedrock-utils.js";