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- Update openaf.js and owrap.server.js to support MCP functionality - Add new MCP test suite in autoTestAll.MCP.js and autoTestAll.MCP.yaml
Modified js/genScripts.js with 15 insertions and 4 deletions to improve script generation.
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This pull request introduces support for the "modern" (2026-07-28+) stateless, per-request protocol era in the Model Context Protocol (MCP) client and server, while maintaining full backward compatibility with legacy (initialize-handshake-based) protocol versions. The changes allow clients to automatically negotiate the most advanced protocol supported by the server, and servers to handle both legacy and modern requests side-by-side. Additionally, there are improvements to Unix launcher scripts for safer terminal state restoration.
MCP Protocol Modernization and Negotiation
$mcpinjs/openaf.js) now supports automatic negotiation of protocol versions, including the new modern, stateless era (2026-07-28+). IfaOptions.protocolVersionis set to"auto", the client probes the server and uses the most advanced mutually supported protocol. Legacy behavior remains the default for callers not opting into"auto". [1] [2] [3]ow.server.mcpinjs/owrap.server.js) implements helpers for protocol version negotiation, request classification (modern vs. legacy), error construction, and result wrapping. The server can now respond to modern-era requests with enhanced metadata and error handling, while preserving legacy behavior for older clients.ow.server.mcpStdiofunction now accepts anoptsparameter to opt into modern protocol support, serving both legacy and modern clients concurrently. [1] [2]Client and Server API Enhancements
_era,_negotiatedVersion) and methods (e.g.,isInputRequired) to help callers understand the negotiated protocol and handle modern server features, such as input-required results. [1] [2]Unix Script Improvements
genUnixSttyRestoreinjs/genScripts.js) now ensures the terminal state is safely restored even if an exact snapshot is unavailable, falling back tostty saneto prevent leaving the shell in an unusable state. Signal handling is also improved for portability. [1] [2]These changes collectively enable seamless adoption of the new MCP protocol era, while ensuring existing clients and servers remain fully functional without modification.
References:
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11]