refactor: merge nine files whose reason to exist was gone

src/ goes from 84 files to 75 at the same line count — every merge below
had exactly one consumer.

cdp/event-queue.ts and cdp/pending-requests.ts become daemon/queue.ts.
I split these in the daemon-internals commit on the grounds that they
held two unrelated concerns, but the transport commit had already deleted
the second transport, so both halves had one consumer and the split
bought nothing. They also sat in cdp/ while only daemon/ used them.

cdp/transport.ts held only the CdpTransport interface after the second
transport went; five of its six consumers import it type-only, so it
moves to cdp/types.ts. cdp/evaluate.ts moves into cdp/session.ts rather
than into its lone consumer isolated-tab.ts — it reaches session.call
directly, so under src/domains/ it would trip the raw-cdp-call rule.

util/keycodes.ts and util/time.ts fold into their only callers
(keyboard.ts, page.ts); util/bytes.ts into util/truncate.ts, which
already owns output-size formatting; readpage/capture.ts and
search/extract.ts into the tools beside them; profile/picker.ts into
profile/command.ts.

Kept deliberately: mutex.ts and domains/target.ts each have their own
test suite, and folding target.ts into click.ts would make a tool file
export a helper. sharp-shim.ts is an isolation boundary carrying two
allowlisted casts. result.ts, guards.ts, js-template.ts and paths.ts are
small but have 44, 12, 8 and 3 consumers.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

23 files changed, 236 insertions, 244 deletions

diff --git a/src/cdp/evaluate.ts b/src/cdp/evaluate.ts
deleted file mode 100644
index 733a11b..0000000
--- a/src/cdp/evaluate.ts
+++ /dev/null
@@ -1,30 +0,0 @@
-import { type Result, err, ok } from "../util/result";
-import { type CdpError, cdpError } from "./errors";
-import type { CdpSession } from "./session";
-
-export const evaluateJson = async <T>(
-  session: CdpSession,
-  expression: string,
-  check: (v: unknown) => v is T,
-  opts?: { sessionId?: string | undefined; timeoutMs?: number | undefined },
-): Promise<Result<T, CdpError>> => {
-  const params = {
-    expression,
-    returnByValue: true,
-    awaitPromise: true,
-  };
-  const callOpts = opts?.timeoutMs !== undefined ? { timeoutMs: opts.timeoutMs } : {};
-  const r = opts?.sessionId !== undefined
-    ? await session.callOnTarget("Runtime.evaluate", params, opts.sessionId, callOpts)
-    : await session.call("Runtime.evaluate", params, callOpts);
-  if (!r.success) return r;
-  const { result, exceptionDetails } = r.data;
-  if (exceptionDetails !== undefined) {
-    return err(cdpError("remote_error", exceptionDetails.text, "Runtime.evaluate"));
-  }
-  const value = result.value;
-  if (!check(value)) {
-    return err(cdpError("invalid_response", `unexpected evaluate shape (type: ${result.type}) for: ${expression.slice(0, 60)}`, "Runtime.evaluate"));
-  }
-  return ok(value);
-};
diff --git a/src/cdp/event-queue.ts b/src/cdp/event-queue.ts
deleted file mode 100644
index 08024b0..0000000
--- a/src/cdp/event-queue.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-import type { CdpEvent } from "./types";
-
-export type EventQueue = {
-  readonly push: (e: CdpEvent) => void;
-  readonly end: () => void;
-  readonly iter: AsyncIterable<CdpEvent>;
-};
-
-export const makeEventQueue = (): EventQueue => {
-  const buf: CdpEvent[] = [];
-  const waiters: Array<(v: IteratorResult<CdpEvent, undefined>) => void> = [];
-  let ended = false;
-  return {
-    push(e) {
-      if (ended) return;
-      const w = waiters.shift();
-      if (w) w({ value: e, done: false });
-      else buf.push(e);
-    },
-    end() {
-      ended = true;
-      for (const w of waiters.splice(0)) w({ value: undefined, done: true });
-    },
-    iter: {
-      [Symbol.asyncIterator](): AsyncIterator<CdpEvent, undefined, undefined> {
-        return {
-          next: (): Promise<IteratorResult<CdpEvent, undefined>> =>
-            new Promise((resolve) => {
-              const next = buf.shift();
-              if (next) resolve({ value: next, done: false });
-              else if (ended) resolve({ value: undefined, done: true });
-              else waiters.push(resolve);
-            }),
-        };
-      },
-    },
-  };
-};
diff --git a/src/cdp/session.ts b/src/cdp/session.ts
index 0eb83fa..5adf7e0 100644
--- a/src/cdp/session.ts
+++ b/src/cdp/session.ts
@@ -1,8 +1,8 @@
-import { map, type Result, ok } from "../util/result";
-import type { CdpError } from "./errors";
+import { map, type Result, err, ok } from "../util/result";
+import { type CdpError, cdpError } from "./errors";
 import type { DialogInfo } from "./types";
 import type { OwnershipRegistry } from "./ownership";
-import type { CdpTransport } from "./transport";
+import type { CdpTransport } from "./types";
 import { type CdpMethod, type ParamsOf, type ResultOf, decodeResult } from "./commands";
 import { decodeEvent } from "./events";
 import { createNetworkBuffer, type DrainResult, type NetworkFilter } from "./network-buffer";
@@ -374,3 +374,30 @@ export const createCdpSession = (
   };
   return session;
 };
+
+export const evaluateJson = async <T>(
+  session: CdpSession,
+  expression: string,
+  check: (v: unknown) => v is T,
+  opts?: { sessionId?: string | undefined; timeoutMs?: number | undefined },
+): Promise<Result<T, CdpError>> => {
+  const params = {
+    expression,
+    returnByValue: true,
+    awaitPromise: true,
+  };
+  const callOpts = opts?.timeoutMs !== undefined ? { timeoutMs: opts.timeoutMs } : {};
+  const r = opts?.sessionId !== undefined
+    ? await session.callOnTarget("Runtime.evaluate", params, opts.sessionId, callOpts)
+    : await session.call("Runtime.evaluate", params, callOpts);
+  if (!r.success) return r;
+  const { result, exceptionDetails } = r.data;
+  if (exceptionDetails !== undefined) {
+    return err(cdpError("remote_error", exceptionDetails.text, "Runtime.evaluate"));
+  }
+  const value = result.value;
+  if (!check(value)) {
+    return err(cdpError("invalid_response", `unexpected evaluate shape (type: ${result.type}) for: ${expression.slice(0, 60)}`, "Runtime.evaluate"));
+  }
+  return ok(value);
+};
diff --git a/src/cdp/transport.ts b/src/cdp/transport.ts
deleted file mode 100644
index 4036ff7..0000000
--- a/src/cdp/transport.ts
+++ /dev/null
@@ -1,18 +0,0 @@
-import type { Result } from "../util/result";
-import type { CdpError } from "./errors";
-import type { CdpEvent } from "./types";
-
-export const DEFAULT_TIMEOUT_MS = 15_000;
-
-export type CdpTransport = {
-  connect(url: string, opts?: { timeoutMs?: number }): Promise<Result<void, CdpError>>;
-  close(): Promise<void>;
-  request(
-    method: string,
-    params: Record<string, unknown>,
-    opts?: { sessionId?: string | null; timeoutMs?: number },
-  ): Promise<Result<unknown, CdpError>>;
-  events(): AsyncIterable<CdpEvent>;
-  state(): "open" | "closed" | "connecting";
-  onClose(cb: () => void): () => void;
-};
diff --git a/src/cdp/types.ts b/src/cdp/types.ts
index 984b930..6119b69 100644
--- a/src/cdp/types.ts
+++ b/src/cdp/types.ts
@@ -1,4 +1,6 @@
+import type { Result } from "../util/result";
 import { isRecord } from "../util/guards";
+import type { CdpError } from "./errors";
 
 export type CdpEvent = {
   readonly method: string;
@@ -63,3 +65,18 @@ export const isCdpRawMessage = (v: unknown): v is CdpRawMessage => {
   }
   return true;
 };
+
+export const DEFAULT_TIMEOUT_MS = 15_000;
+
+export type CdpTransport = {
+  connect(url: string, opts?: { timeoutMs?: number }): Promise<Result<void, CdpError>>;
+  close(): Promise<void>;
+  request(
+    method: string,
+    params: Record<string, unknown>,
+    opts?: { sessionId?: string | null; timeoutMs?: number },
+  ): Promise<Result<unknown, CdpError>>;
+  events(): AsyncIterable<CdpEvent>;
+  state(): "open" | "closed" | "connecting";
+  onClose(cb: () => void): () => void;
+};
diff --git a/src/client.ts b/src/client.ts
index f1d2cb7..6a5419a 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -6,7 +6,7 @@ import { safeJs } from "./util/js-template";
 import { type Mutex, createMutex } from "./util/mutex";
 import { discoverEndpoint } from "./cdp/discovery";
 import { type CdpError, cdpError } from "./cdp/errors";
-import type { CdpTransport } from "./cdp/transport";
+import type { CdpTransport } from "./cdp/types";
 import { type CdpSession, createCdpSession } from "./cdp/session";
 import { type OwnershipRegistry, createOwnershipRegistry } from "./cdp/ownership";
 import { ensureHarnessWindow, openHarnessTab } from "./cdp/target-factory";
diff --git a/src/cdp/pending-requests.ts b/src/daemon/queue.ts
index 03b19cd..a19efd0 100644
--- a/src/cdp/pending-requests.ts
+++ b/src/daemon/queue.ts
@@ -1,5 +1,43 @@
 import { type Result, err } from "../util/result";
-import { type CdpError, cdpError } from "./errors";
+import { type CdpError, cdpError } from "../cdp/errors";
+import type { CdpEvent } from "../cdp/types";
+
+export type EventQueue = {
+  readonly push: (e: CdpEvent) => void;
+  readonly end: () => void;
+  readonly iter: AsyncIterable<CdpEvent>;
+};
+
+export const makeEventQueue = (): EventQueue => {
+  const buf: CdpEvent[] = [];
+  const waiters: Array<(v: IteratorResult<CdpEvent, undefined>) => void> = [];
+  let ended = false;
+  return {
+    push(e) {
+      if (ended) return;
+      const w = waiters.shift();
+      if (w) w({ value: e, done: false });
+      else buf.push(e);
+    },
+    end() {
+      ended = true;
+      for (const w of waiters.splice(0)) w({ value: undefined, done: true });
+    },
+    iter: {
+      [Symbol.asyncIterator](): AsyncIterator<CdpEvent, undefined, undefined> {
+        return {
+          next: (): Promise<IteratorResult<CdpEvent, undefined>> =>
+            new Promise((resolve) => {
+              const next = buf.shift();
+              if (next) resolve({ value: next, done: false });
+              else if (ended) resolve({ value: undefined, done: true });
+              else waiters.push(resolve);
+            }),
+        };
+      },
+    },
+  };
+};
 
 export type CdpResult = Result<unknown, CdpError>;
 
diff --git a/src/daemon/transport.ts b/src/daemon/transport.ts
index 4e75215..3c42336 100644
--- a/src/daemon/transport.ts
+++ b/src/daemon/transport.ts
@@ -2,10 +2,9 @@ import { createConnection, type Socket } from "node:net";
 import { createInterface } from "node:readline";
 import { type Result, err, ok } from "../util/result";
 import { type CdpError, cdpError, classifyRemoteError } from "../cdp/errors";
-import { DEFAULT_TIMEOUT_MS, type CdpTransport } from "../cdp/transport";
+import { DEFAULT_TIMEOUT_MS, type CdpTransport } from "../cdp/types";
 import type { CdpEvent } from "../cdp/types";
-import { makeEventQueue } from "../cdp/event-queue";
-import { type Pending, makeOnClose, rejectAllPending, sendWithTimeout } from "../cdp/pending-requests";
+import { type Pending, makeEventQueue, makeOnClose, rejectAllPending, sendWithTimeout } from "./queue";
 import {
   DAEMON_SOCKET_PATH,
   type WireRequest,
diff --git a/src/domains/isolated-tab.ts b/src/domains/isolated-tab.ts
index 103c9cc..b76b101 100644
--- a/src/domains/isolated-tab.ts
+++ b/src/domains/isolated-tab.ts
@@ -2,7 +2,7 @@ import type { BrowserClient } from "../client";
 import { type Result, err, ok } from "../util/result";
 import { safeJs } from "../util/js-template";
 import { ensureHarnessWindow, openHarnessTab } from "../cdp/target-factory";
-import { evaluateJson } from "../cdp/evaluate";
+import { evaluateJson } from "../cdp/session";
 import type { ToolErr } from "../util/tool";
 import { cdpCallBrowser, cdpCallOnTarget, cdpErrToToolErr, evalJs } from "./cdp-call";
 
diff --git a/src/domains/js.ts b/src/domains/js.ts
index d2588d0..6ba21cd 100644
--- a/src/domains/js.ts
+++ b/src/domains/js.ts
@@ -6,7 +6,7 @@ import { Type } from "typebox";
 import { Markdown, Text } from "@mariozechner/pi-tui";
 import { getMarkdownTheme, keyHint } from "@mariozechner/pi-coding-agent";
 import { type Result, err, ok } from "../util/result";
-import { formatBytes } from "../util/bytes";
+import { formatBytes } from "../util/truncate";
 import { defineBrowserTool, type ToolErr, type ToolOk } from "../util/tool";
 import { evalJs } from "./cdp-call";
 import { applyTruncation } from "../util/truncate";
diff --git a/src/domains/keyboard.ts b/src/domains/keyboard.ts
index 50bee62..17b56e7 100644
--- a/src/domains/keyboard.ts
+++ b/src/domains/keyboard.ts
@@ -1,11 +1,19 @@
 import { Type } from "typebox";
 import { safeJs } from "../util/js-template";
-import { virtualKeyCode } from "../util/keycodes";
 import { type Result, err, ok } from "../util/result";
 import { defineBrowserTool, type ToolErr, type ToolOk } from "../util/tool";
 import { cdpCall, evalJs } from "./cdp-call";
 import { resolveRefToObjectId } from "./ref-resolve";
 
+const VIRTUAL_KEY_CODES: Readonly<Record<string, number>> = {
+  Enter: 13, Tab: 9, Backspace: 8, Escape: 27, Delete: 46, " ": 32,
+  ArrowLeft: 37, ArrowUp: 38, ArrowRight: 39, ArrowDown: 40,
+  Home: 36, End: 35, PageUp: 33, PageDown: 34,
+};
+
+const virtualKeyCode = (key: string): number =>
+  VIRTUAL_KEY_CODES[key] ?? (key.length === 1 ? key.charCodeAt(0) : 0);
+
 const TypeArgs = Type.Object({
   text: Type.String({ description: "Text to type" }),
 });
diff --git a/src/domains/network.ts b/src/domains/network.ts
index aeb1aa6..a34dde3 100644
--- a/src/domains/network.ts
+++ b/src/domains/network.ts
@@ -2,7 +2,7 @@ import { Type } from "typebox";
 import { Markdown, Text } from "@mariozechner/pi-tui";
 import { getMarkdownTheme, keyHint } from "@mariozechner/pi-coding-agent";
 import { type Result, err, ok } from "../util/result";
-import { formatBytes } from "../util/bytes";
+import { formatBytes } from "../util/truncate";
 import { defineBrowserTool, type ToolErr, type ToolOk } from "../util/tool";
 import { cdpCall } from "./cdp-call";
 import { applyTruncation } from "../util/truncate";
diff --git a/src/domains/page.ts b/src/domains/page.ts
index c202ef1..909963f 100644
--- a/src/domains/page.ts
+++ b/src/domains/page.ts
@@ -2,9 +2,25 @@ import { Type } from "typebox";
 import { type Result, err, ok } from "../util/result";
 import { defineBrowserTool, type ToolErr, type ToolOk } from "../util/tool";
 import { evalJs } from "./cdp-call";
-import { sleep } from "../util/time";
 import { safeJs } from "../util/js-template";
 
+const sleep = (ms: number, signal?: AbortSignal): Promise<void> =>
+  new Promise((resolve, reject) => {
+    if (signal?.aborted) {
+      reject(signal.reason ?? new Error("aborted"));
+      return;
+    }
+    const onAbort = (): void => {
+      clearTimeout(timer);
+      reject(signal?.reason ?? new Error("aborted"));
+    };
+    const timer = setTimeout(() => {
+      signal?.removeEventListener("abort", onAbort);
+      resolve();
+    }, ms);
+    signal?.addEventListener("abort", onAbort, { once: true });
+  });
+
 export const pageInfoTool = defineBrowserTool({
   name: "browser_page_info",
   label: "Browser Page Info",
diff --git a/src/domains/readpage/capture.ts b/src/domains/readpage/capture.ts
deleted file mode 100644
index b0b7ae0..0000000
--- a/src/domains/readpage/capture.ts
+++ /dev/null
@@ -1,34 +0,0 @@
-const BODY_TEXT_LIMIT = 20_000;
-
-export const buildPageCaptureExpr = (): string => `
-  (() => {
-    const BOILERPLATE = new Set(['NAV', 'HEADER', 'FOOTER', 'ASIDE']);
-    const inBoilerplate = (el) => {
-      for (let n = el; n; n = n.parentElement) {
-        if (BOILERPLATE.has(n.tagName)) return true;
-        const role = n.getAttribute && n.getAttribute('role');
-        if (role === 'navigation' || role === 'banner' || role === 'contentinfo') return true;
-      }
-      return false;
-    };
-    const kindOf = (tag) => {
-      if (/^H[1-6]$/.test(tag)) return 'heading';
-      if (tag === 'LI') return 'listitem';
-      if (tag === 'BLOCKQUOTE') return 'blockquote';
-      if (tag === 'P') return 'paragraph';
-      return 'other';
-    };
-    const selector = 'p, h1, h2, h3, h4, h5, h6, li, blockquote';
-    const root = document.querySelector('article, main, [role=main]') || document.body;
-    const blocks = [];
-    for (const el of root.querySelectorAll(selector)) {
-      const text = (el.innerText || '').replace(/\\s+/g, ' ').trim();
-      if (!text) continue;
-      let linkTextLength = 0;
-      for (const a of el.querySelectorAll('a')) linkTextLength += (a.innerText || '').length;
-      blocks.push({ kind: kindOf(el.tagName), text, linkTextLength, inBoilerplate: inBoilerplate(el) });
-    }
-    const bodyText = (document.body.innerText || '').replace(/\\n{3,}/g, '\\n\\n').slice(0, ${BODY_TEXT_LIMIT});
-    return JSON.stringify({ url: location.href, title: document.title, blocks, bodyText });
-  })()
-`;
diff --git a/src/domains/readpage/read-page.ts b/src/domains/readpage/read-page.ts
index 9d46c7e..fadee38 100644
--- a/src/domains/readpage/read-page.ts
+++ b/src/domains/readpage/read-page.ts
@@ -15,7 +15,6 @@ import {
   waitForIsolatedLoad,
 } from "../isolated-tab";
 import { renderExpandableText } from "../render";
-import { buildPageCaptureExpr } from "./capture";
 import { extractReadable, type PageCapture, type ReadablePage } from "./readability";
 
 const LOAD_TIMEOUT_MS = 15_000;
@@ -49,6 +48,41 @@ const PageCaptureSchema = Type.Object({
 
 const pageCaptureValidator = Compile(PageCaptureSchema);
 
+const BODY_TEXT_LIMIT = 20_000;
+
+const buildPageCaptureExpr = (): string => `
+  (() => {
+    const BOILERPLATE = new Set(['NAV', 'HEADER', 'FOOTER', 'ASIDE']);
+    const inBoilerplate = (el) => {
+      for (let n = el; n; n = n.parentElement) {
+        if (BOILERPLATE.has(n.tagName)) return true;
+        const role = n.getAttribute && n.getAttribute('role');
+        if (role === 'navigation' || role === 'banner' || role === 'contentinfo') return true;
+      }
+      return false;
+    };
+    const kindOf = (tag) => {
+      if (/^H[1-6]$/.test(tag)) return 'heading';
+      if (tag === 'LI') return 'listitem';
+      if (tag === 'BLOCKQUOTE') return 'blockquote';
+      if (tag === 'P') return 'paragraph';
+      return 'other';
+    };
+    const selector = 'p, h1, h2, h3, h4, h5, h6, li, blockquote';
+    const root = document.querySelector('article, main, [role=main]') || document.body;
+    const blocks = [];
+    for (const el of root.querySelectorAll(selector)) {
+      const text = (el.innerText || '').replace(/\\s+/g, ' ').trim();
+      if (!text) continue;
+      let linkTextLength = 0;
+      for (const a of el.querySelectorAll('a')) linkTextLength += (a.innerText || '').length;
+      blocks.push({ kind: kindOf(el.tagName), text, linkTextLength, inBoilerplate: inBoilerplate(el) });
+    }
+    const bodyText = (document.body.innerText || '').replace(/\\n{3,}/g, '\\n\\n').slice(0, ${BODY_TEXT_LIMIT});
+    return JSON.stringify({ url: location.href, title: document.title, blocks, bodyText });
+  })()
+`;
+
 const toPageCapture = (raw: unknown): PageCapture | undefined => {
   if (typeof raw === "string") {
     const parsed = parseJson(raw, pageCaptureValidator);
diff --git a/src/domains/search/extract.ts b/src/domains/search/extract.ts
deleted file mode 100644
index 4d9e892..0000000
--- a/src/domains/search/extract.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-const PAGE_TEXT_LIMIT = 4000;
-
-export const buildSerpExtractionExpr = (): string => `
-  (() => {
-    const main = document.querySelector('#search, #rso, #main') || document.body;
-    const headings = Array.from(main.querySelectorAll('a h3'));
-    const seen = new Set();
-    const anchors = [];
-    for (const h3 of headings) {
-      const a = h3.closest('a[href]');
-      if (!a) continue;
-      const href = a.href;
-      if (!href || seen.has(href)) continue;
-      seen.add(href);
-      const container =
-        a.closest('div.g') ||
-        a.closest('div[data-hveid]') ||
-        a.parentElement?.parentElement ||
-        a.parentElement;
-      const containerText = container ? container.innerText || '' : '';
-      const heading = h3.innerText || h3.textContent || '';
-      const snippet = containerText.replace(heading, '').replace(/\\s+/g, ' ').trim().slice(0, 500);
-      anchors.push({ href, heading, snippet });
-    }
-    const pageText = (document.body.innerText || '').slice(0, ${PAGE_TEXT_LIMIT});
-    return JSON.stringify({ anchors, pageText });
-  })()
-`;
diff --git a/src/domains/search/web-search.ts b/src/domains/search/web-search.ts
index 9327f15..553135c 100644
--- a/src/domains/search/web-search.ts
+++ b/src/domains/search/web-search.ts
@@ -13,7 +13,6 @@ import {
   waitForIsolatedLoad,
 } from "../isolated-tab";
 import { renderExpandableText } from "../render";
-import { buildSerpExtractionExpr } from "./extract";
 import { classifySerp, parseGoogleSerp, type SearchResult, type SerpExtraction } from "./google-serp";
 
 const LOAD_TIMEOUT_MS = 15_000;
@@ -25,6 +24,35 @@ const WebSearchArgs = Type.Object({
   ),
 });
 
+const PAGE_TEXT_LIMIT = 4000;
+
+const buildSerpExtractionExpr = (): string => `
+  (() => {
+    const main = document.querySelector('#search, #rso, #main') || document.body;
+    const headings = Array.from(main.querySelectorAll('a h3'));
+    const seen = new Set();
+    const anchors = [];
+    for (const h3 of headings) {
+      const a = h3.closest('a[href]');
+      if (!a) continue;
+      const href = a.href;
+      if (!href || seen.has(href)) continue;
+      seen.add(href);
+      const container =
+        a.closest('div.g') ||
+        a.closest('div[data-hveid]') ||
+        a.parentElement?.parentElement ||
+        a.parentElement;
+      const containerText = container ? container.innerText || '' : '';
+      const heading = h3.innerText || h3.textContent || '';
+      const snippet = containerText.replace(heading, '').replace(/\\s+/g, ' ').trim().slice(0, 500);
+      anchors.push({ href, heading, snippet });
+    }
+    const pageText = (document.body.innerText || '').slice(0, ${PAGE_TEXT_LIMIT});
+    return JSON.stringify({ anchors, pageText });
+  })()
+`;
+
 const buildSerpUrl = (query: string, limit: number): string =>
   `https://www.google.com/search?q=${encodeURIComponent(query)}&num=${limit}&hl=en`;
 
diff --git a/src/profile/command.ts b/src/profile/command.ts
index 0703ae8..270b42f 100644
--- a/src/profile/command.ts
+++ b/src/profile/command.ts
@@ -4,8 +4,54 @@ import { discoverEndpoint } from "../cdp/discovery";
 import { type Result, err, ok } from "../util/result";
 import { type BrowserProfile, listProfiles } from "./list";
 import { browserNameForUserDataDir, userDataDirCandidates } from "./paths";
-import { pinFor, promptForProfile } from "./picker";
-import { clearPin, readPin, writePin } from "./store";
+import { clearPin, type ProfilePin, readPin, writePin } from "./store";
+
+// `ctx.ui.select` resolves to undefined both on Escape and in non-interactive modes, so "no answer" must mean "change nothing".
+
+const CLEAR_SELECTION_LABEL = "— Clear selection (use whichever window is focused) —";
+
+type ProfileChoice =
+  | { readonly kind: "profile"; readonly profile: BrowserProfile }
+  | { readonly kind: "clear" }
+  | { readonly kind: "cancelled" };
+
+const disambiguate = (profiles: ReadonlyArray<BrowserProfile>): ReadonlyArray<string> => {
+  const counts = new Map<string, number>();
+  for (const p of profiles) counts.set(p.label, (counts.get(p.label) ?? 0) + 1);
+  return profiles.map((p) => ((counts.get(p.label) ?? 0) > 1 ? `${p.label} [${p.dir}]` : p.label));
+};
+
+const promptForProfile = async (
+  ctx: ExtensionContext,
+  profiles: ReadonlyArray<BrowserProfile>,
+  currentPin: ProfilePin | null,
+  title = "Select browser profile",
+): Promise<ProfileChoice> => {
+  if (!ctx.hasUI || profiles.length === 0) return { kind: "cancelled" };
+
+  const labels = disambiguate(profiles);
+  const rows = labels.map((label, i) => {
+    const isPinned = currentPin?.profileDir === profiles[i]?.dir;
+    return isPinned ? `✓ ${label}` : `  ${label}`;
+  });
+  const options = [...rows, CLEAR_SELECTION_LABEL];
+
+  const answer = await ctx.ui.select(title, options);
+  if (answer === undefined) return { kind: "cancelled" };
+  if (answer === CLEAR_SELECTION_LABEL) return { kind: "clear" };
+
+  const index = options.indexOf(answer);
+  const profile = index >= 0 ? profiles[index] : undefined;
+  if (!profile) return { kind: "cancelled" };
+  return { kind: "profile", profile };
+};
+
+const pinFor = (userDataDir: string, profile: BrowserProfile): ProfilePin => ({
+  userDataDir,
+  profileDir: profile.dir,
+  label: profile.label,
+  savedAt: new Date().toISOString(),
+});
 
 const resolveUserDataDir = async (client: BrowserClient): Promise<Result<string, string>> => {
   const connected = client.userDataDir();
diff --git a/src/profile/picker.ts b/src/profile/picker.ts
deleted file mode 100644
index ede43a6..0000000
--- a/src/profile/picker.ts
+++ /dev/null
@@ -1,50 +0,0 @@
-// `ctx.ui.select` resolves to undefined both on Escape and in non-interactive modes, so "no answer" must mean "change nothing".
-
-import type { ExtensionContext } from "@mariozechner/pi-coding-agent";
-import type { BrowserProfile } from "./list";
-import type { ProfilePin } from "./store";
-
-const CLEAR_SELECTION_LABEL = "— Clear selection (use whichever window is focused) —";
-
-export type ProfileChoice =
-  | { readonly kind: "profile"; readonly profile: BrowserProfile }
-  | { readonly kind: "clear" }
-  | { readonly kind: "cancelled" };
-
-const disambiguate = (profiles: ReadonlyArray<BrowserProfile>): ReadonlyArray<string> => {
-  const counts = new Map<string, number>();
-  for (const p of profiles) counts.set(p.label, (counts.get(p.label) ?? 0) + 1);
-  return profiles.map((p) => ((counts.get(p.label) ?? 0) > 1 ? `${p.label} [${p.dir}]` : p.label));
-};
-
-export const promptForProfile = async (
-  ctx: ExtensionContext,
-  profiles: ReadonlyArray<BrowserProfile>,
-  currentPin: ProfilePin | null,
-  title = "Select browser profile",
-): Promise<ProfileChoice> => {
-  if (!ctx.hasUI || profiles.length === 0) return { kind: "cancelled" };
-
-  const labels = disambiguate(profiles);
-  const rows = labels.map((label, i) => {
-    const isPinned = currentPin?.profileDir === profiles[i]?.dir;
-    return isPinned ? `✓ ${label}` : `  ${label}`;
-  });
-  const options = [...rows, CLEAR_SELECTION_LABEL];
-
-  const answer = await ctx.ui.select(title, options);
-  if (answer === undefined) return { kind: "cancelled" };
-  if (answer === CLEAR_SELECTION_LABEL) return { kind: "clear" };
-
-  const index = options.indexOf(answer);
-  const profile = index >= 0 ? profiles[index] : undefined;
-  if (!profile) return { kind: "cancelled" };
-  return { kind: "profile", profile };
-};
-
-export const pinFor = (userDataDir: string, profile: BrowserProfile): ProfilePin => ({
-  userDataDir,
-  profileDir: profile.dir,
-  label: profile.label,
-  savedAt: new Date().toISOString(),
-});
diff --git a/src/util/bytes.ts b/src/util/bytes.ts
deleted file mode 100644
index 43ad49c..0000000
--- a/src/util/bytes.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-export const formatBytes = (n: number): string => {
-  if (n >= 1_048_576) return `${(n / 1_048_576).toFixed(1)} MB`;
-  if (n >= 1024) return `${(n / 1024).toFixed(1)} KB`;
-  return `${n} B`;
-};
diff --git a/src/util/keycodes.ts b/src/util/keycodes.ts
deleted file mode 100644
index 68be059..0000000
--- a/src/util/keycodes.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-const VIRTUAL_KEY_CODES: Readonly<Record<string, number>> = {
-  Enter: 13, Tab: 9, Backspace: 8, Escape: 27, Delete: 46, " ": 32,
-  ArrowLeft: 37, ArrowUp: 38, ArrowRight: 39, ArrowDown: 40,
-  Home: 36, End: 35, PageUp: 33, PageDown: 34,
-};
-
-export const virtualKeyCode = (key: string): number =>
-  VIRTUAL_KEY_CODES[key] ?? (key.length === 1 ? key.charCodeAt(0) : 0);
diff --git a/src/util/time.ts b/src/util/time.ts
deleted file mode 100644
index ae751f8..0000000
--- a/src/util/time.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-export const sleep = (ms: number, signal?: AbortSignal): Promise<void> =>
-  new Promise((resolve, reject) => {
-    if (signal?.aborted) {
-      reject(signal.reason ?? new Error("aborted"));
-      return;
-    }
-    const onAbort = (): void => {
-      clearTimeout(timer);
-      reject(signal?.reason ?? new Error("aborted"));
-    };
-    const timer = setTimeout(() => {
-      signal?.removeEventListener("abort", onAbort);
-      resolve();
-    }, ms);
-    signal?.addEventListener("abort", onAbort, { once: true });
-  });
diff --git a/src/util/truncate.ts b/src/util/truncate.ts
index 2bf0600..7a1fa02 100644
--- a/src/util/truncate.ts
+++ b/src/util/truncate.ts
@@ -33,3 +33,9 @@ export const applyTruncation = async (output: string, prefix: string): Promise<T
   const text = `${t.content}\n\n[Output truncated: ${t.outputLines} of ${t.totalLines} lines (${formatSize(t.outputBytes)} of ${formatSize(t.totalBytes)}). ${formatSize(omitted)} omitted. Full output: ${file}]`;
   return { text, fullOutputPath: file, wasTruncated: true };
 };
+
+export const formatBytes = (n: number): string => {
+  if (n >= 1_048_576) return `${(n / 1_048_576).toFixed(1)} MB`;
+  if (n >= 1024) return `${(n / 1024).toFixed(1)} KB`;
+  return `${n} B`;
+};