Agent Browser Shield: Free OpenClaw Extension Blocks Prompt Injection & Dark Patterns
PixieBrix has released Agent Browser Shield, a free, source-available browser extension that sits between OpenClaw and the browser to protect AI agents from adversarial content.
What It Blocks
- Prompt injection — both visible and hidden instructions embedded in page content
- Dark patterns — UI elements designed to manipulate or coerce agent behavior
- Context pollution — low-value junk that degrades instruction following
Bonus: stripping irrelevant content reduces token consumption, making runs both more secure and cheaper.
Background
PixieBrix previously built insider-risk and social-engineering protection for BPO contact centers. Agent Browser Shield applies the same methodology to agentic browsing via OpenClaw.
The team acknowledges this is not a solved problem and is building the shield in the open, sharing benchmarks as they go. They invite community contributions to help prioritize rules.
Installation
Install alongside your OpenClaw setup from either:
- ClawHub: https://clawhub.ai/pixiebrix/agent-browser-shield
- GitHub: https://github.com/pixiebrix/agent-browser-shield
Give it a star and report weird agent behaviors you've encountered to help shape the ruleset.
📖 Read the full source: r/openclaw
👀 See Also
TUI Studio: Visual Terminal UI Design Tool in Alpha
TUI Studio is a Figma-like visual editor for designing terminal user interfaces with drag-and-drop components, real-time ANSI preview, and planned export to six frameworks including Ink, BubbleTea, and Textual. Currently in alpha with non-functional exports, it's available for macOS, Windows, and Docker.
Maggy: An Autonomous Engineering Platform on Claude Code with Cross-Session Memory and P2P Team Learning
Maggy sits at Level 4 of the AI coding tool spectrum: multi-model orchestration, cross-session memory, process intelligence from CI/reviews, and P2P team learning. Benchmarks show 83% reduction in Claude usage while catching 7 security issues missed by single-pipeline Claude Code.
Mengram AI: Auto-Memory Tool for Claude Code Sessions
Mengram AI automatically maintains context between Claude Code sessions by loading cognitive profiles, injecting relevant past context into prompts, and saving new knowledge. It stores semantic, episodic, and procedural memory that evolves based on failures.
GoModel: A Lightweight Open-Source AI Gateway Written in Go
GoModel is an open-source AI gateway that provides a unified OpenAI-compatible API for multiple providers including OpenAI, Anthropic, Gemini, Groq, xAI, and Ollama. It features a 17MB Docker image, 44x smaller than LiteLLM, with environment-variable-first configuration and built-in observability.