Add selectable CASAN IDE integrations

2026-07-23 23:04:54 +07:00
parent ff4e9d5a53
commit ce708fafe5
28 changed files with 1658 additions and 407 deletions
@@ -0,0 +1,104 @@
+#!/usr/bin/env python3
+"""VS Code/GitHub Copilot adapter for the CASAN-owned `@casan` participant.
+
+The VS Code extension owns the request and native model call, while this thin
+adapter maps participant lifecycle messages to the shared Plan-20 bridge.  It
+does not call a model and it does not claim to intercept built-in Copilot chat.
+"""
+
+from __future__ import annotations
+
+import argparse
+import json
+import os
+import sys
+
+_ADAPTER_DIR = os.path.dirname(os.path.abspath(__file__))
+_BRIDGE_DIR = os.path.abspath(os.path.join(_ADAPTER_DIR, "..", "..", "scripts", "python"))
+if _BRIDGE_DIR not in sys.path:
+    sys.path.insert(0, _BRIDGE_DIR)
+
+import agentic_bridge as bridge  # noqa: E402
+
+ADAPTER_VERSION = "20.2.0-vscode"
+
+
+def emit(value, exit_code=0):
+    sys.stdout.write(json.dumps(value, ensure_ascii=False) + "\n")
+    return exit_code
+
+
+def handle_begin(payload):
+    response = bridge.op_begin({
+        "op": "begin",
+        "client": "vscode",
+        "client_version": payload.get("client_version"),
+        "adapter_version": ADAPTER_VERSION,
+        "project": payload.get("project") or payload.get("cwd"),
+        "session": payload.get("session_id"),
+        "turn": payload.get("turn_id"),
+        "prompt": payload.get("prompt", ""),
+        # The explicit @casan participant owns the complete model lifecycle.
+        "integration_mode": "casan_owned",
+    })
+    return emit(response, 2 if response.get("decision") == "block" else 0)
+
+
+def handle_finalize(payload):
+    response = bridge.op_finalize({
+        "op": "finalize",
+        "admission_id": payload.get("admission_id", ""),
+        "stop_reason": payload.get("stop_reason") or "completed",
+        "assistant_summary": payload.get("assistant_summary"),
+    })
+    return emit(response)
+
+
+def handle_abort(payload):
+    response = bridge.op_abort({
+        "op": "abort",
+        "admission_id": payload.get("admission_id", ""),
+        "reason": payload.get("reason") or "vscode_participant_aborted",
+    })
+    return emit(response)
+
+
+def handle_telemetry(payload):
+    response = bridge.op_telemetry({
+        "op": "telemetry",
+        "admission_id": payload.get("admission_id", ""),
+        "model": payload.get("model"),
+        "runtime_ms": payload.get("runtime_ms"),
+        "input_tokens": payload.get("input_tokens"),
+        "output_tokens": payload.get("output_tokens"),
+        "cost_amount": payload.get("cost_amount"),
+        "cost_currency": payload.get("cost_currency"),
+        "cost_source": payload.get("cost_source"),
+    })
+    return emit(response)
+
+
+HANDLERS = {
+    "Begin": handle_begin,
+    "Finalize": handle_finalize,
+    "Abort": handle_abort,
+    "Telemetry": handle_telemetry,
+}
+
+
+def main(argv=None):
+    parser = argparse.ArgumentParser(description="CASAN VS Code participant adapter")
+    parser.add_argument("--event", required=True, choices=sorted(HANDLERS))
+    args = parser.parse_args(argv)
+    try:
+        payload = json.loads(sys.stdin.read() or "{}")
+    except ValueError:
+        return emit({"decision": "block", "reason": "invalid_json"}, 2)
+    try:
+        return HANDLERS[args.event](payload)
+    except Exception as exc:  # noqa: BLE001 - adapter boundary
+        return emit({"decision": "block", "reason": "adapter_error:%s" % exc}, 2)
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())