release: v0.4.0 — accessibility snapshot, network capture, snapshot-first prompts

Adds two new tools and pivots the agent's default workflow away from
screenshots toward structured page data.

browser_snapshot — CDP accessibility tree (roles, names, states, hierarchy)
with click coordinates @(x,y) attached to every interactive element via
DOM.getBoxModel (parallel, 1.5s aggregate budget). Pass directly to
browser_click — no screenshot round-trip. Optional includeScreenshot:true
for visual confirmation. format:"json" returns a slim structure with full
box per node.

browser_network_requests — replaces the deprecated browser_get_network_log
placeholder. Filters by urlPattern (substring or /regex/), method, status,
resource type, recency. Optional response-body capture under a 5s aggregate
budget with 50KB per-body cap. Buffer is page-scoped (cleared on tab switch),
500 records/tab, with a bufferOverflowed flag on drain.

CDP plumbing: in-process aggregator in src/cdp/network-buffer.ts wired into
the existing single-consumer event loop. Accessibility domain enabled
alongside Page/DOM/Runtime/Network on every attach.

Ctrl+O expand/collapse on three tools' renderResult — browser_snapshot,
browser_network_requests, browser_execute_js. Compact-by-default views with
keyHint("app.tools.expand") that respects user keybinding remaps.

Tool prompts pivoted snapshot-first: browser_screenshot is documented as
LAST RESORT for visual verification only; browser_snapshot is the default
for understanding pages; browser_execute_js is the default for surgical
reads. browser_click and browser_open_urls guidance follows.

SKILL.md collapsed from ~342 to ~53 lines — keeping only what isn't already
in tool prompts: the decision tree, connection rules, browser_run_script
daemon bindings.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/registry.ts b/src/registry.ts
index d205bf6..df912b1 100644
--- a/src/registry.ts
+++ b/src/registry.ts
@@ -13,7 +13,8 @@ import { listTabsTool, currentTabTool, switchTabTool, newTabTool, closeTabTool }
 import { uploadFileTool, downloadTool, printToPdfTool } from "./domains/files";
 import { viewportResizeTool } from "./domains/viewport";
 import { dragAndDropTool } from "./domains/drag";
-import { httpGetTool, getNetworkLogTool } from "./domains/network";
+import { httpGetTool, networkRequestsTool } from "./domains/network";
+import { snapshotTool } from "./domains/snapshot";
 import { executeJsTool, runScriptTool } from "./domains/js";
 
 // Mutation tools that modify page / browser state are marked `serialized: true`
@@ -46,7 +47,8 @@ const TOOLS: ReadonlyArray<AnyBrowserToolDefinition> = [
   { ...viewportResizeTool, serialized: true },
   { ...dragAndDropTool, serialized: true },
   httpGetTool,
-  getNetworkLogTool,
+  networkRequestsTool,
+  snapshotTool,
   executeJsTool,
   runScriptTool,
 ];