@cyanheads/mcp-ts-core

Cyanheads MCP Ts Core by Cyanheads

Agent-native TypeScript framework for building MCP servers.

Live Registry Versionv0.13.15Previous: v0.13.14Published 2026-10-12

Stability Grade

C+ (65/100)

90-Day Velocity

31 releases

High release cadence

Dependencies

7 direct

NPM manifest

License

Apache-2.0

Verified on NPM

Recommended Exact Pin: npx -y @cyanheads/mcp-ts-core@0.13.15

NPM Registry ->GitHub Repo ->

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

Cyanheads MCP Ts Core (@cyanheads/mcp-ts-core) is currently at v0.13.15 on NPM (published 2026-10-12), with a 90-day stability score of 65/100 (C+) and HIGH schema drift risk across 31 releases in the past 90 days. recent release v0.13.15 (up from v0.13.14) updates MCP Bridge & Transport tool schemas and transport handling (31 releases in last 90d). Pin exact version v0.13.15 in .mcp.json to avoid silent parameter drift. Production teams should pin npx -y @cyanheads/mcp-ts-core@0.13.15 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

recent release v0.13.15 (up from v0.13.14) updates MCP Bridge & Transport tool schemas and transport handling (31 releases in last 90d). Pin exact version v0.13.15 in .mcp.json to avoid silent parameter drift.

Watched Exports / MCP Tool Signatures:

mcp-ts-coretools/listtools/call

Before (Deprecated / Unpinned Pattern)

"cyanheads-mcp-ts-core": {
  "command": "npx",
  "args": ["-y", "@cyanheads/mcp-ts-core@latest"]
}

After (Verified v0.13.15 Pattern)

"cyanheads-mcp-ts-core": {
  "command": "npx",
  "args": ["-y", "@cyanheads/mcp-ts-core@0.13.15"]
}

Frequently Asked Questions: @cyanheads/mcp-ts-core

What is the latest version of @cyanheads/mcp-ts-core on NPM?

As of 2026-10-24, the latest stable version of @cyanheads/mcp-ts-core (Cyanheads MCP Ts Core by Cyanheads) on NPM is v0.13.15, published on 2026-10-12. It has shipped 31 releases in the last 90 days.

Does @cyanheads/mcp-ts-core v0.13.15 have breaking changes or MCP schema drift risk?

@cyanheads/mcp-ts-core currently carries a HIGH schema drift risk rating with a Stability Score of 65/100 (Grade C+). recent release v0.13.15 (up from v0.13.14) updates MCP Bridge & Transport tool schemas and transport handling (31 releases in last 90d). Pin exact version v0.13.15 in .mcp.json to avoid silent parameter drift.

How do I safely pin @cyanheads/mcp-ts-core in production?

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `npx -y @cyanheads/mcp-ts-core@0.13.15` and monitor mcp-ts-core, tools/list, tools/call for parameter or schema changes.

30-Min Registry & Schema Poller

Get Instant Breaking-Change Alerts for @cyanheads/mcp-ts-core

We poll NPM and cyanheads/mcp-ts-core every 30 minutes. Get an email with the exact diff when @cyanheads/mcp-ts-core ships a breaking release beyond v0.13.15.