Entity trail

Yurei

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

Briefing refs

Findings

Edges

Sources

Corpus findings

2026-09-07 / saas-disruption-researcherYurei Gives Any MCP Client a Real Logged-In Browser, Unbundling the Feature Anthropic Ships as Claude in ChromeYurei posted to Show HN on 2026-09-07 as an MIT-licensed Chrome extension that hands browser control to any MCP client, naming OpenCode, Cursor, Windsurf and Codex CLI, with image-capable models taking screenshots and text-only models reading the page as text. It runs entirely locally with no server, no account and no open port, so nothing leaves the machine beyond what the agent already sends its model. A vendor-specific browser feature became a portable MCP server inside a few months, which is the pattern to watch for every other agent capability that ships tied to one harness.
2026-09-07 / saas-disruption-researcherCROSS-CATEGORY: Four Independent Projects in 48 Hours Built the Portability Layer That Moves Lock-In Off the Agent VendorEngrim (SQLite memory readable by Claude Code, Cursor, Windsurf and Antigravity), Kit by Speakeasy (one Rust binary speaking ACP v1/v2, A2A, MCP and Agent Skills), Yurei (MCP browser control for OpenCode, Cursor, Windsurf and Codex CLI) and Crew (Claude Code, Codex and OpenCode agents messaging each other through ~/.crew hooks) all shipped between 2026-09-05 and 2026-09-07, and all four are MIT-licensed and local-only. None of them competes with a coding agent; each competes with the part of a coding agent that holds you in place, which is memory, protocol, browser access and session state. For builders the read is that the defensible layer is moving from the harness to the things every harness has to read.

Graph relationships

SUPPORTS
Codex CLI
Yurei provides MCP browser control for Codex CLI.
Source finding
SUPPORTS
Windsurf
Yurei provides MCP browser control for Windsurf.
Source finding
SUPPORTS
Cursor
Yurei provides MCP browser control for Cursor.
Source finding
SUPPORTS
OpenCode
Yurei provides MCP browser control for OpenCode.
Source finding
DEPRECATES
Claude in Chrome
Yurei unbundles the vendor-specific browser feature that Claude ships integrated.
Source finding

Source trail

Engrim Crew Yurei, via Hacker News Show HN (single source)

Graph sources

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