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MCP Boundary

ChatGPT plugin

MCP engineering at the seam

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Movement

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Rank by placement

#5180of 6,0228places down24h—7d
#5,129#5,260#5,391#5,522Sep 13Sep 19Sep 25Oct 1Oct 7Oct 12

Rank in Developer tools

#441of 5373places down24h—7d
#435#447#459#471Sep 13Sep 19Sep 25Oct 1Oct 7Oct 12

In its category

How this plugin compares with others in the same category. Positions are counted within the category, not across the whole directory.

Developer tools441st of 537 by placement
#PluginPosition7d
438FlightDeck#5166—
439LanceDB#5168—
440QAMap#5178—
441MCP BoundaryThis page#5180—
442The 5th Ledger#5184—
443Software Architect#5185—
444Kora#5188—

All 537 Developer tools plugins

A pure-skill engineering plugin that traces active callers and entrypoints, implements or migrates the real MCP path, reconciles source with package and activated runtime, and keeps host claims inside qualifying observations.

Example prompts

  • “Use $mcp-boundary to trace and repair the active MCP path, then verify the requested behavior.”
  • “Use $mcp-boundary to migrate this MCP implementation and retire superseded active paths.”
  • “Use $mcp-boundary to reconcile source, package, runtime, and named-host behavior without overstating evidence.”

Skills

  • mcp-boundary

    Complete MCP engineering work on the live path: build or repair servers and Apps, debug stdio or Streamable HTTP, migrate protocol/SDK/transport versions, reconcile source with package and activated runtime, inspect capability/effect authorization, and verify named-host claims without promoting weaker evidence. Use for real Model Context Protocol implementation, review, migration, runtime, or host-integration tasks. Do not use for ordinary non-MCP APIs, generic frontend work, or incidental product copy.

Categories
Made by
Yifei Fang · Website
Sign-in
On Install
Capabilities
Build and repair MCP implementations, Trace active protocol and transport paths, Migrate SDKs, revisions, and runtimes, Reconcile source, package, and activation, Verify named-host and effect claims
Availability
Available
Version
0.2.0
Keywords
mcp, model-context-protocol, engineering, migration, runtime, verification, codex
Created
September 13, 2026
More info