feat(skills): support npx skills add via skills.sh

- Add fork binary names (agent-browser-stealth, abs) to allowed-tools
  in all 6 SKILL.md files so installs into Claude Code / Cursor don't
  prompt for permission on every command
- Document `npx skills add leeguooooo/agent-browser-stealth` in README
- Bump README upstream-base mention from v0.24.0 to v0.27.0

skill-data/agentcore/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: agentcore
 description: Run agent-browser on AWS Bedrock AgentCore cloud browsers. Use when the user wants to use AgentCore, run browser automation on AWS, use a cloud browser with AWS credentials, or needs a managed browser session backed by AWS infrastructure. Triggers include "use agentcore", "run on AWS", "cloud browser with AWS", "bedrock browser", "agentcore session", or any task requiring AWS-hosted browser automation.
-allowed-tools: Bash(agent-browser:*), Bash(npx agent-browser:*)
+allowed-tools: Bash(agent-browser:*), Bash(agent-browser-stealth:*), Bash(abs:*), Bash(npx agent-browser:*), Bash(npx agent-browser-stealth:*)
 ---
 
 # AWS Bedrock AgentCore

skill-data/core/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: core
 description: Core agent-browser usage guide. Read this before running any agent-browser commands. Covers the snapshot-and-ref workflow, navigating pages, interacting with elements (click, fill, type, select), extracting text and data, taking screenshots, managing tabs, handling forms and auth, waiting for content, running multiple browser sessions in parallel, and troubleshooting common failures. Use when the user asks to interact with a website, fill a form, click something, extract data, take a screenshot, log into a site, test a web app, or automate any browser task.
-allowed-tools: Bash(agent-browser:*), Bash(npx agent-browser:*)
+allowed-tools: Bash(agent-browser:*), Bash(agent-browser-stealth:*), Bash(abs:*), Bash(npx agent-browser:*), Bash(npx agent-browser-stealth:*)
 ---
 
 # agent-browser core

skill-data/dogfood/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: dogfood
 description: Systematically explore and test a web application to find bugs, UX issues, and other problems. Use when asked to "dogfood", "QA", "exploratory test", "find issues", "bug hunt", "test this app/site/platform", or review the quality of a web application. Produces a structured report with full reproduction evidence -- step-by-step screenshots, repro videos, and detailed repro steps for every issue -- so findings can be handed directly to the responsible teams.
-allowed-tools: Bash(agent-browser:*), Bash(npx agent-browser:*)
+allowed-tools: Bash(agent-browser:*), Bash(agent-browser-stealth:*), Bash(abs:*), Bash(npx agent-browser:*), Bash(npx agent-browser-stealth:*)
 ---
 
 # Dogfood

skill-data/electron/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: electron
 description: Automate Electron desktop apps (VS Code, Slack, Discord, Figma, Notion, Spotify, etc.) using agent-browser via Chrome DevTools Protocol. Use when the user needs to interact with an Electron app, automate a desktop app, connect to a running app, control a native app, or test an Electron application. Triggers include "automate Slack app", "control VS Code", "interact with Discord app", "test this Electron app", "connect to desktop app", or any task requiring automation of a native Electron application.
-allowed-tools: Bash(agent-browser:*), Bash(npx agent-browser:*)
+allowed-tools: Bash(agent-browser:*), Bash(agent-browser-stealth:*), Bash(abs:*), Bash(npx agent-browser:*), Bash(npx agent-browser-stealth:*)
 ---
 
 # Electron App Automation

skill-data/slack/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: slack
 description: Interact with Slack workspaces using browser automation. Use when the user needs to check unread channels, navigate Slack, send messages, extract data, find information, search conversations, or automate any Slack task. Triggers include "check my Slack", "what channels have unreads", "send a message to", "search Slack for", "extract from Slack", "find who said", or any task requiring programmatic Slack interaction.
-allowed-tools: Bash(agent-browser:*), Bash(npx agent-browser:*)
+allowed-tools: Bash(agent-browser:*), Bash(agent-browser-stealth:*), Bash(abs:*), Bash(npx agent-browser:*), Bash(npx agent-browser-stealth:*)
 ---
 
 # Slack Automation