Files
OneCAD-Draft/docs/automation/mcp_smoke.py
T
Karim Jerbi 7b68d274ad feat(mcp): add batch summaries with read-only detail retrieval
Add opt-in response_detail=summary with step and change counts, compact state, warnings, and actionable errors or prompts. Return an ocs_read batch_result request for full cached details without resuming mutations.

Keep compact/full behavior and idempotent batch retries intact. Preserve active-step context and report unavailable cached results explicitly. Document cache scope and retention; update schemas and digest.

Validation: 47 MCP unit tests, live stdio smoke test, rustfmt, and diff checks passed.
2026-10-12 09:39:54 +01:00

203 lines
8.3 KiB
Python

"""Protocol smoke test for the native client-neutral MCP endpoint."""
import json
from pathlib import Path
import subprocess
import sys
TOOLS = {"ocs_sessions", "ocs_read", "ocs_execute", "ocs_capture"}
MODERN = "2026-07-28"
def start(server: Path) -> subprocess.Popen[str]:
process = subprocess.Popen(
[str(server), "--mcp"],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
text=True,
)
assert process.stdin and process.stdout
return process
def request(process: subprocess.Popen[str], payload: dict) -> dict:
assert process.stdin and process.stdout
process.stdin.write(json.dumps(payload) + "\n")
process.stdin.flush()
return json.loads(process.stdout.readline())
def close(process: subprocess.Popen[str]) -> None:
assert process.stdin
process.stdin.close()
assert process.wait(timeout=5) == 0
def legacy(server: Path) -> None:
process = start(server)
initialized = request(process, {
"jsonrpc": "2.0",
"id": 1,
"method": "initialize",
"params": {"protocolVersion": "2025-11-25", "capabilities": {}, "clientInfo": {"name": "smoke", "version": "1"}},
})
assert initialized["result"]["serverInfo"]["name"] == "OpenCADStudio"
assert "state.command.accepts" in initialized["result"]["instructions"]
process.stdin.write(json.dumps({"jsonrpc": "2.0", "method": "notifications/initialized"}) + "\n")
process.stdin.flush()
tools = request(process, {"jsonrpc": "2.0", "id": 2, "method": "tools/list", "params": {}})
definitions = {tool["name"]: tool for tool in tools["result"]["tools"]}
names = set(definitions)
assert names == TOOLS, names
assert "summary" in definitions["ocs_execute"]["inputSchema"]["properties"]["response_detail"]["enum"]
assert "batch_result" in definitions["ocs_read"]["inputSchema"]["properties"]["op"]["enum"]
execute_request = definitions["ocs_execute"]["inputSchema"]["properties"]["request"]
variants = execute_request.get("anyOf") or execute_request.get("oneOf")
# Resolve local references from the complete tool input schema.
root = definitions["ocs_execute"]["inputSchema"]
def resolve(variant):
if "$ref" not in variant:
return variant
ref = variant["$ref"]
assert ref.startswith("#/")
resolved = root
for part in ref[2:].split("/"):
resolved = resolved[part.replace("~1", "/").replace("~0", "~")]
return resolved
variants = [resolve(variant) for variant in variants]
op_enum = execute_request["properties"]["op"]["enum"]
assert len(variants) == len(op_enum)
for shipped in ("entities_create", "entities_delete", "entities_transform",
"block_define", "block_delete", "file_identity", "xdata_set",
"view_focus", "wblock", "plot",
"entities_copy_to", "group_create", "selection_set_save",
"selection_set_load", "close", "sysvar", "layout_create",
"page_setup_set", "text_replace"):
assert shipped in op_enum, shipped
assert "xdata_get" in definitions["ocs_read"]["inputSchema"]["properties"]["op"]["enum"]
assert "text_search" in definitions["ocs_read"]["inputSchema"]["properties"]["op"]["enum"]
assert "text_audit" in definitions["ocs_read"]["inputSchema"]["properties"]["op"]["enum"]
assert execute_request["properties"]["steps"]["maxItems"] == 64
variant_map = {
v["properties"]["op"].get("const") or v["properties"]["op"]["enum"][0]: v
for v in variants
}
assert variant_map["run"]["properties"]["cmd"]["type"] == "string"
assert "set_properties" in execute_request["properties"]["op"]["enum"]
assert "save_verified" in execute_request["properties"]["op"]["enum"]
assert "record_schema" in definitions["ocs_read"]["inputSchema"]["properties"]["op"]["enum"]
assert "audit" in definitions["ocs_read"]["inputSchema"]["properties"]["op"]["enum"]
read_parameters = definitions["ocs_read"]["inputSchema"]["properties"]["parameters"]["properties"]
assert {"collection", "where", "paths", "target_format", "target_version"} <= set(read_parameters)
assert variant_map["save_verified"]["properties"]["target_version"]["enum"][0] == "R14"
assert variant_map["input"]["properties"]["kind"]["enum"] == [
"text", "token", "point", "entity", "structure", "selection", "enter"
]
for name in {"ocs_sessions", "ocs_read", "ocs_execute"}:
assert definitions[name]["outputSchema"]["type"] == "object"
assert "resultType" not in tools["result"]
sessions = request(process, {
"jsonrpc": "2.0",
"id": 3,
"method": "tools/call",
"params": {"name": "ocs_sessions", "arguments": {"launch_if_none": False}},
})
assert not sessions["result"].get("isError"), sessions
missing_batch = request(process, {
"jsonrpc": "2.0", "id": 4, "method": "tools/call",
"params": {"name": "ocs_read", "arguments": {
"ocs_session_id": "missing", "op": "batch_result",
"parameters": {"request_id": "expired-batch"},
}},
})
assert missing_batch["result"]["isError"] is True
assert "absent or expired" in missing_batch["result"]["content"][0]["text"]
close(process)
def modern(server: Path) -> None:
process = start(server)
meta = {
"io.modelcontextprotocol/protocolVersion": MODERN,
"io.modelcontextprotocol/clientInfo": {"name": "smoke", "version": "1"},
"io.modelcontextprotocol/clientCapabilities": {},
}
discovered = request(process, {
"jsonrpc": "2.0",
"id": "discover",
"method": "server/discover",
"params": {"_meta": meta},
})
assert discovered["result"]["resultType"] == "complete"
assert discovered["result"]["ttlMs"] >= 0
assert discovered["result"]["cacheScope"] in {"public", "private"}
assert "io.modelcontextprotocol/tasks" in discovered["result"]["capabilities"]["extensions"]
tools = request(process, {
"jsonrpc": "2.0",
"id": "tools",
"method": "tools/list",
"params": {"_meta": meta},
})
assert {tool["name"] for tool in tools["result"]["tools"]} == TOOLS
assert tools["result"]["resultType"] == "complete"
assert tools["result"]["ttlMs"] >= 0
assert tools["result"]["cacheScope"] in {"public", "private"}
definitions = {tool["name"]: tool for tool in tools["result"]["tools"]}
assert definitions["ocs_execute"]["inputSchema"]["properties"]["response_detail"]["default"] == "compact"
assert definitions["ocs_capture"]["inputSchema"]["properties"]["scope"]["default"] == "viewport"
missing_cmd = request(process, {
"jsonrpc": "2.0",
"id": "missing-cmd",
"method": "tools/call",
"params": {
"name": "ocs_execute",
"arguments": {
"ocs_session_id": "missing",
"request": {"op": "run", "request_id": "run-1"},
},
"_meta": meta,
},
})
# Tool errors are text content; the output schema covers successes only.
assert missing_cmd["result"]["isError"] is True
assert "structuredContent" not in missing_cmd["result"]
error = missing_cmd["result"]["content"][0]["text"]
assert "Missing cmd" in error
assert "LINE 0,0 10,10" in error
invalid_mutation = request(process, {
"jsonrpc": "2.0",
"id": "invalid-mutation",
"method": "tools/call",
"params": {
"name": "ocs_execute",
"arguments": {"ocs_session_id": "missing", "request": {"op": "undo"}},
"_meta": meta,
},
})
assert invalid_mutation["result"]["isError"] is True
assert "structuredContent" not in invalid_mutation["result"]
assert "request_id" in invalid_mutation["result"]["content"][0]["text"]
rejected = request(process, {
"jsonrpc": "2.0",
"id": "unsupported",
"method": "tools/list",
"params": {"_meta": {"io.modelcontextprotocol/protocolVersion": "2099-01-01"}},
})
assert rejected["error"]["code"] == -32022
close(process)
def main() -> None:
server = Path(sys.argv[1] if len(sys.argv) > 1 else "target/debug/OpenCADStudio").resolve()
legacy(server)
modern(server)
if __name__ == "__main__":
main()