Search & Research MCPnpmhigh schema drift risk

mbox-mcp

Mbox MCP by koleharv

MCP server for local email archives - search and read Google Takeout .mbox exports and .eml files entirely on your machine. No OAuth, no IMAP, no cloud.

Live Registry Versionv0.1.2Previous: v0.1.1Published 2026-10-18

Stability Grade

C+ (73/100)

90-Day Velocity

3 releases

Stable release cadence

Dependencies

3 direct

NPM manifest

License

MIT

Verified on NPM

Recommended Exact Pin: npx -y mbox-mcp@0.1.2

NPM Registry ->GitHub Repo ->

TL;DR Verdict & Quick Citation Summary (2026-10-24)Source: AgentBreakWatch Live NPM Index

Mbox MCP (mbox-mcp) is currently at v0.1.2 on NPM (published 2026-10-18), with a 90-day stability score of 73/100 (C+) and HIGH schema drift risk across 3 releases in the past 90 days. Built on MCP SDK (^1.30.0); recent release v0.1.2 (up from v0.1.1) updates Search & Research MCP tool schemas and transport handling (3 releases in last 90d). Pin exact version v0.1.2 in .mcp.json to avoid silent parameter drift. Production teams should pin npx -y mbox-mcp@0.1.2 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

Built on MCP SDK (^1.30.0); recent release v0.1.2 (up from v0.1.1) updates Search & Research MCP tool schemas and transport handling (3 releases in last 90d). Pin exact version v0.1.2 in .mcp.json to avoid silent parameter drift.

Watched Exports / MCP Tool Signatures:

mbox-mcptools/listtools/call

Before (Deprecated / Unpinned Pattern)

"mbox-mcp": {
  "command": "npx",
  "args": ["-y", "mbox-mcp@latest"]
}

After (Verified v0.1.2 Pattern)

"mbox-mcp": {
  "command": "npx",
  "args": ["-y", "mbox-mcp@0.1.2"]
}

Frequently Asked Questions: mbox-mcp

What is the latest version of mbox-mcp on NPM?

As of 2026-10-24, the latest stable version of mbox-mcp (Mbox MCP by koleharv) on NPM is v0.1.2, published on 2026-10-18. It has shipped 3 releases in the last 90 days.

Does mbox-mcp v0.1.2 have breaking changes or MCP schema drift risk?

mbox-mcp currently carries a HIGH schema drift risk rating with a Stability Score of 73/100 (Grade C+). Built on MCP SDK (^1.30.0); recent release v0.1.2 (up from v0.1.1) updates Search & Research MCP tool schemas and transport handling (3 releases in last 90d). Pin exact version v0.1.2 in .mcp.json to avoid silent parameter drift.

How do I safely pin mbox-mcp in production?

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `npx -y mbox-mcp@0.1.2` and monitor mbox-mcp, tools/list, tools/call for parameter or schema changes.

30-Min Registry & Schema Poller