docs: 2026 product & solution landscape research briefing

[jamubc]

Summary

Adds docs/research/landscape-2026.md — a cited reference note on where gemini-mcp-tool sits in the current MCP ecosystem — and a "Research" section in the VitePress sidebar that links it.

Documentation only; no code changes.

Contents

• MCP ecosystem status — cross-vendor adoption, the official registry, and the protocol's move toward remote/authenticated servers.
• Where this project fits — the CLI-bridge + large-context + token-saving angle, and how it compares to API-wrapper servers and multi-model orchestrators.
• Adoption patterns — multi-model delegation and context-window management as the practical drivers for a tool like this.
• Substrate notes — the Gemini CLI → Antigravity CLI transition (free tier ends 2026-06-18) and what it implies for the integration surface.
• Security — the CVE-2026-0755 fix shipped in v1.1.6, in the context of broader MCP tool-poisoning/prompt-injection concerns.

Every claim carries a confidence marker (H/M/L) and an inline source link, with a caveats section noting figures that are point-in-time or snippet-sourced.

Files

• docs/research/landscape-2026.md — the note.
• docs/.vitepress/config.js — adds the "Research" sidebar group.

Notes

• Figures are point-in-time (2026-06-05); some rest on search snippets where primary pages returned HTTP 403, flagged inline.
• A full vitepress build was not run (docs deps not installed here); the config change mirrors the existing sidebar groups and passes node --check.

[gemini-code-assist]

Code Review

This pull request introduces a comprehensive research briefing on the Model Context Protocol (MCP) ecosystem and competitive landscape for 2026, alongside adding a corresponding 'Research' section to the documentation sidebar. The review feedback suggests expanding this new sidebar section by default to improve the discoverability of the newly added research document.

Important

The consumer version of Gemini Code Assist on GitHub is being sunset. Starting June 18, 2026, new organization installations will be blocked, and all code review activity will officially cease on July 17, 2026.
For more details on the timeline and next steps, please review the Help Documentation.

[gemini-code-assist]

Since the Research section currently contains only a single item, having it collapsed by default (collapsed: true) reduces its discoverability. Setting collapsed: false (consistent with other main sections like Getting Started, Core Concepts, and Usage) ensures that the research briefing is immediately visible to readers in the sidebar.

Suggested change

	{
	text: 'Research',
	collapsed: true,
	items: [
	{ text: 'Landscape & Trends (2026)', link: '/research/landscape-2026' },
	]
	}
	{
	text: 'Research',
	collapsed: false,
	items: [
	{ text: 'Landscape & Trends (2026)', link: '/research/landscape-2026' },
	]
	}