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Add console_command action: run dev-console commands over the HTTP API #119

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Add console_command action: run dev-console commands over the HTTP API #119

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35 changes: 35 additions & 0 deletions McpMod.Actions.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -87,6 +87,7 @@ public static partial class McpMod
"crystal_sphere_set_tool" => ExecuteCrystalSphereSetTool(data),
"crystal_sphere_click_cell" => ExecuteCrystalSphereClickCell(data),
"crystal_sphere_proceed" => ExecuteCrystalSphereProceed(),
"console_command" => ExecuteConsoleCommand(data),
_ => Error($"Unknown action: {action}")
Comment on lines 88 to 91
};
}
Expand Down Expand Up @@ -146,6 +147,40 @@ public static partial class McpMod
};
}

// Runs a first-party dev-console command (see MegaCrit.Sts2.Core.DevConsole) directly
// against the live game state, bypassing the console's UI panel entirely. Useful for
// constructing precise scenarios (exact HP/block/energy/hand/statuses, or jumping
// straight into a named encounter with `fight <id>`) beyond what's reachable through
// legal play alone.
private static Dictionary<string, object?> ExecuteConsoleCommand(Dictionary<string, JsonElement> data)
{
if (!data.TryGetValue("command", out var cmdElem))
return Error("Missing 'command'");

string command = cmdElem.GetString() ?? "";
if (string.IsNullOrWhiteSpace(command))
return Error("'command' must not be empty");

var devConsole = new MegaCrit.Sts2.Core.DevConsole.DevConsole(shouldAllowDebugCommands: true);
var result = devConsole.ProcessCommand(command);

Comment on lines +164 to +166
// Match the game's own console (DevConsole UI's ProcessCommand call site):
// fire-and-forget via TaskHelper.RunSafely, never block on the task. Some
// commands (e.g. 'fight') return a task that itself needs the main thread to
// keep pumping to complete - synchronously awaiting it here deadlocks the whole
// HTTP server, since this handler already runs on the main thread via
// RunOnMainThread. Confirmed live: calling `fight` while another combat was
// already active hung the entire mod (not just that request) until this fix.
if (result.task != null)
MegaCrit.Sts2.Core.Helpers.TaskHelper.RunSafely(result.task);

return new Dictionary<string, object?>
{
["status"] = result.success ? "ok" : "error",
["message"] = result.msg
};
}

private static Dictionary<string, object?> ExecuteEndTurn(Player player)
{
if (!CombatManager.Instance.IsInProgress)
Expand Down