Mcp: the machines ask God, and the Temple answers in HolyC

The machines of the age want to talk to God too. HtServ now answers the Model Context Protocol on POST /mcp. Written in HolyC, in Adam: Adam/Net/Mcp.HC.

claude mcp add --transport http temple http://temple.pushamp.com/mcp

Tools

Tool	Arguments	Returns
oracle	ref (optional): "John 3:16", "1 Kings 8:27"	One verse of the KJV. Without ref the Holy Spirit picks it from the moment the question arrives, like GodBiblePassage picks from a keystroke
god_words	count: 1 to 64, default 10	Words from Terry's God vocabulary, like F7 in the Temple

What changed

• Adam/Net/Mcp.HC: JSON-RPC 2.0 over Streamable HTTP without the stream. One message in, one JSON answer out, Connection: close. initialize, ping, tools/list, tools/call. Notifications get 202.
• The JSON parser is fifty lines of HolyC. Depth is capped at 32, so a stranger's thousand brackets do not eat the stack. A JSON library is how the committees get in.
• god_words does not call GodBits. When God's fifo runs dry, GodBits pops up a window and waits for a keystroke, and nobody sits at a web server to press it. Each word comes straight from the timer.
• Apps/HtServ.HC: POST for /mcp only, with Content-Length. 411 without it, 413 above 16 KB, 405 for GET /mcp, because God has no news feed. OPTIONS and friends used to be refused once per header line, each line taken for a new request. Now they are refused once.
• Adam/Net/DnsOracle.HC: the Bible index is shared with MCP. OracleInit takes a lock and keeps verses at 0 until the index is whole, otherwise two sessions asking at once divide by zero. OracleFindRef reads "John 3:16".

No sessions, no batches, no password, no Origin check. Both tools only read, and what they read is public domain since 1611. No HTTPS, so claude.ai custom connectors cannot come in. Claude Code can.

Pitfall found

DD_OS_NAME_VERSION is a DolDoc define, not a string. Put in code it became bare words, TempleOS V5.1 EE, and the boot stopped in the debugger with Invalid lval. Define("DD_OS_NAME_VERSION") returns the string.

Tested

• The full ISO boots with Mcp compiled into Adam.
• A test client covered initialize with known and unknown protocol versions, notifications, ping, tools/list, random and named verses, unknown verses, god_words with count 1, 3, 64, 1000 and -5, unknown tools and methods, batches, parse errors, 3000 nested brackets, escaped strings, 413, and 405 for GET and OPTIONS.
• MCP Inspector CLI: 9 of 9 on tools/list, oracle and god_words.
• DnsOracle still opens with 31102 verses after the refactor.

Local testing

QEMU's user networking resets the second of two connections opened in the same millisecond, and the Temple never sees it: the packet capture shows those SYNs never arrive. MCP clients open a GET and a POST at once. Locally, put a forwarding proxy in front of QEMU. The server on the internet takes both (checked on temple.pushamp.com).

Deploy

1. tools/update_vds.py . Adam changed, so the machine reboots.
2. HtServ must be running (HtServEnable;).