LockIn MCP

What it does

LockIn MCP is the first distraction block built for the AI agent era. Rather than using a bypassable Chrome extension, you now just tell your favourite agent to block distractions for you, and it can do it natively. No bypassing, pure focus.

Tell your AI to block distractions. Then get back to work. Distraction blocker for macOS, Linux & Windows. Pro From $2.99/month. Works with Poke, Claude & ChatGPT.

We've all been there. You open Instagram and before you know it you've lost an entire afternoon. Win back control over your time — let AI cut out the distractions for you. Industry research on interruption cost, context switching, and multitasking. Connect LockIn to Claude, ChatGPT, Perplexity, Gemini, Poke, and more. One install, blocks that work across every browser, and an assistant that keeps you on task. A new profile, a private window, another browser, a restart - none of it gets you around a system-level block. Say what you're working on and for how long. Ask for a timed exception when you genuinely need one site back. youtube.com has been blocked because it doesn’t relate to your…from lockinmcp.com

In the maker’s words, at launch

I was tired of how bad distraction blockers are so I built my own. LockIn lets AI assistants (Claude, ChatGPT, Cursor, etc.) block websites by editing the system hosts file directly via MCP tools (via a secure cloudflare bridge). Why? Because chrome extensions don't work. Blocking it natively makes it unbypassable…

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  Task SentryNov 2025 · tasksentry.app · ▲129

  Free AI website blocker for Chrome that stops distractions in real-time. 100% private on-device processing. Block the right sites at the right time.

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  AI BrowserNov 2025 · aibrowser.surf · ▲143

  Hey HN! I built Browser AI after getting frustrated with the official Playwright MCP server in Claude Code. If you've used it, you know the pain: - 20+ separate tools that Claude has to juggle (click, fill, navigate, wait_for_selector, etc.) - Context window explosions from verbose screenshot data and DOM snapshots - Constant tool selection errors where Claude picks the wrong tool or forgets parameters Browser AI wraps Playwright MCP with a single natural language interface. Instead of Claude managing dozens of tools, you get one: browser_ai.execute. Just tell it what you want in plain…

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  PreloopJan 2026 · preloop.ai · ▲121

  Hey HN, I’m Yannis, co-founder of Preloop. We’ve built a proxy for the Model Context Protocol (MCP) that lets you add human approval gates to your AI agents without changing your agent code. We’re building agents that use tools (Claude Desktop, Cursor, etc.), but we were terrified to give them write-access to sensitive systems (Stripe, Prod DBs, AWS). We didn't want to rewrite our agents to wrap every tool call in complex "ask_user" logic, especially since we use different agent runtimes. We built Preloop as a middleware layer. It acts as a standard MCP server proxy.You point your agent to…

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  Ask-human-mcp – zero-config human-in-loop hatch to stop hallucinations2025 · masonyarbrough.com · ▲129

  While building my startup i kept running into the issue where ai agents in cursor create endpoints or code that shouldn't exist, hallucinates strings, or just don't understand the code. ask-human-mcp pauses your agent whenever it’s stuck, logs a question into ask_human.md in your root directory with answer: PENDING, and then resumes as soon as you fill in the correct answer. the pain: your agent screams out an endpoint that never existed it makes confident assumptions and you spend hours debugging false leads the fix: ask-human-mcp gives your agent an escape hatch. when it’s unsure, it calls…

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  Deepmode2019 · deepmode.app · ▲92

  Block every distraction online.

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  I built a smart blocker after destroying my dopamine baselineNov 2025 · chromewebstore.google.com · ▲20

  I'm a solo dev. A few years ago, I got addicted to Reddit. Spent months in that loop. Being a programmer, I thought I'd be clever. Redirected Reddit's domain to nowhere in my DNS file. Worked great until I'd just... open the file and undo it 20 minutes later. So I made it irreversible. Locked the DNS file so it can't be edited unless I boot my Mac in safe mode. And if I do that, there's a script that instantly locks it again. Haven't used Reddit since last year. Problem solved, right? Wrong. I just replaced Reddit with Twitch and YouTube. Started keeping streams running in the background…

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