ContextFort – Visibility and controls for browser agents
Hey HN! I’m Ashwin, co-founder of ContextFort (https://contextfort.ai/). We provide visibility and controls for AI browser agents like Claude in Chrome through an open-source browser extension. Browser agents are AI copilots that can autonomously navigate and take actions in your browser. They show up as standalone browsers (Comet, Atlas) or Chrome extensions (Claude). They’re especially useful in sites where search/API connectors don’t work well, like searching through Google Groups threads for a bug fix or pulling invoices from BILL.com. Anthropic released Claude CoWork…
ContextFort – Visibility and controls for browser agents launched on January 14, 2026 with 14 votes, #815 of 14,584 launches that month and more than 90% of that year's launches.
In plain words
ContextFort is an open-source browser extension that provides visibility and controls for AI browser agents like Claude operating in Chrome. It addresses security concerns around autonomous AI agents that navigate and perform actions on websites, particularly useful for tasks where traditional search and API connectors are ineffective, such as extracting data from platforms like Google Groups or BILL.com. The tool is designed to help enterprises safely adopt browser agent technology.
written from the facts on this page · September 2026
From the sources
Detect and track AI browser agents in real-time. Protect your context from automated browser agents.
Know exactly what coding agents are doing on your engineers' machines. When an engineer runs Cursor or Claude Code, the agent inherits their full system permissions. No sandbox. No restrictions. Every file, every credential, every network connection. AWS keys, database credentials, API tokens in .env files — all readable by the agent as context. The agent doesn't need to be malicious. It reads .env to "understand your project" and sends it to the AI provider's API. EDR detects threats. It doesn't audit what AI agents are doing. These are fundamentally different questions — one asks “is this malicious?”, the other asks “what did this agent do?” ContextFort monitors from the kernel —…from contextfort.ai
In the maker’s words, at launch
Hey HN! I’m Ashwin, co-founder of ContextFort (https://contextfort.ai/). We provide visibility and controls for AI browser agents like Claude in Chrome through an open-source browser extension. Browser agents are AI copilots that can autonomously navigate and take actions in your browser. They show up…
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Context GatewayMar 2026 · github.com · ▲220We built an open-source proxy that sits between coding agents (Claude Code, OpenClaw, etc.) and the LLM, compressing tool outputs before they enter the context window. Demo: https://www.youtube.com/watch?v=-vFZ6MPrwjw#t=9s. Motivation: Agents are terrible at managing context. A single file read or grep can dump thousands of tokens into the window, most of it noise. This isn't just expensive — it actively degrades quality. Long-context benchmarks consistently show steep accuracy drops as context grows (OpenAI's GPT-5.4 eval goes from 97.2% at 32k to 36.6% at 1M…
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Open-source browser for AI agentsMar 2026 · github.com · ▲155Hi HN, I forked chromium and built agent-browser-protocol (ABP) after noticing that most browser-agent failures aren’t really about the model misunderstanding the page. Instead, the problem is that the model is reasoning from a stale state. ABP is designed to keep the acting agent synchronized with the browser at every step. After each action (click, type, etc), it freezes JavaScript execution and rendering, then captures the resulting state. It also compiles the notable events that occurred during that action loop, such as navigation, file pickers, permission prompts, alerts, and downloads,…
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