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Obscura

App

Standalone application or headless browser infrastructure.

1. What it does

A fast, lightweight headless browser written in Rust with Chrome DevTools Protocol (CDP) and MCP server integration, designed as a stealthy, resource-efficient alternative to Chromium for agent web interactions.

2. Why MRPS selected it

Offers lightweight, fast headless browser infrastructure that agents can drive directly without heavy browser dependencies.

3. Tool Kind

App: Standalone application or headless browser infrastructure.

4. Original repository

https://github.com/h4ckf0r0day/obscura

5. Official documentation

https://github.com/h4ckf0r0day/obscura#readme

6. Author and license

Created by h4ckf0r0day under the Apache-2.0 license.

7. Installation

cargo install obscura

8. When the AI should use it

Use when an agent needs a fast, lightweight headless browser to navigate web pages, inspect DOM elements, or interact over CDP without launching heavy Chromium instances.

9. When the AI should not use it

Do not use as a static code scanner or repository finding generator; Obscura is headless browser infrastructure.

10. What the AI must not do

  • Before you invoke anything, state what you intend to do and why. Do not act until the user confirms. If a rule is ambiguous, ask — do not guess.
  • Restrict browser automation to user-specified local or remote test targets.
  • Do not bypass authentication mechanisms or access controls on target sites.
  • Close browser sessions cleanly to prevent dangling background processes.

11. MRPS usage instructions

Read TESTING.md

12. Last verified

Verified against live repository on: 2026-11-07

View Complete Agent Constraint Sheet
Tool: Obscura When to use: Use when an agent needs a fast, lightweight headless browser to navigate web pages, inspect DOM elements, or interact over CDP without launching heavy Chromium instances. When NOT to use: Do not use as a static code scanner or repository finding generator; Obscura is headless browser infrastructure. Invocation: Run obscura via CLI or connect via CDP or MCP server configuration. Rules: - Before you invoke anything, state what you intend to do and why. Do not act until the user confirms. If a rule is ambiguous, ask — do not guess. - Restrict browser automation to user-specified local or remote test targets. - Do not bypass authentication mechanisms or access controls on target sites. - Close browser sessions cleanly to prevent dangling background processes.