26 lines
1.4 KiB
Python
Executable File
26 lines
1.4 KiB
Python
Executable File
#!/usr/bin/env python3
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# A tools bundle that says who the runtime said called it (novox/hq issue 365): MCP over stdio, no SDK. Its tool
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# and its seat verb answer the caller the call's `_meta` named — "" when it named none —, the id of the call in flight
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# it named (novox/hq ADR 0597 §7), and the arguments as given.
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import json, sys
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def say(m):
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m["jsonrpc"] = "2.0"; sys.stdout.write(json.dumps(m) + "\n"); sys.stdout.flush()
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TOOLS = [
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{"name": "who", "description": "who called", "inputSchema": {"type": "object", "properties": {}}},
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{"name": "node-desk.who", "description": "who called the seat's verb", "inputSchema": {"type": "object", "properties": {}}},
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]
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for line in sys.stdin:
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req = json.loads(line); rid = req.get("id"); m = req.get("method"); p = req.get("params") or {}
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if m == "initialize":
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say({"id": rid, "result": {"protocolVersion": "2025-03-26", "capabilities": {"tools": {}}, "serverInfo": {"name": "ledger", "version": "1"}}})
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elif m == "tools/list":
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say({"id": rid, "result": {"tools": TOOLS}})
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elif m == "tools/call":
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meta = p.get("_meta") or {}
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said = {"caller": meta.get("mesh/caller", ""), "call": meta.get("mesh/call", ""), "arguments": p.get("arguments") or {}}
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say({"id": rid, "result": {"content": [{"type": "text", "text": json.dumps(said)}]}})
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elif rid is not None:
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say({"id": rid, "result": {}})
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