Allow appending args to the configured command

README.md

@@ -54,9 +54,21 @@ To skip the shell and launch an agent (or any command) directly, you can either:
 
 ```sh
 bwai --command claude
-bwai -c "claude --model gemini-2.0-flash-exp"
+
 ```
 
+To append arguments to the command configured in `~/.bwai.json`, use `--`:
+
+```sh
+# With "command": ["goose"] in config
+bwai -- session -r  # runs "goose session -r" to resume a session
+
+# With "command": ["claude"] in config
+bwai -- --model gemini-2.0-flash-exp  # runs "claude --model gemini-2.0-flash-exp"
+```
+
+Everything after `--` is passed as extra arguments to the resolved command.
+
 ## Configuration
 
 `bwai` works out of the box with no config file. To customise behaviour, create `~/.bwai.json` as a global config. This can be overridden per-run with the `--config` flag:

cmd/bwai/main.go

@@ -7,6 +7,7 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"strings"
 )
 
 func main() {
@@ -59,6 +60,8 @@ func main() {
 	if *commandFlag != "" {
 		command = []string{*commandFlag}
 	}
+	// Append any trailing args after -- to the resolved command
+	command = append(command, flag.Args()...)
 
 	fmt.Printf("bwai: sandboxed in %s\n", currentDir)
 	args := []string{
@@ -122,7 +125,7 @@ func main() {
 		// running with --unshare-pid (which it does by default).
 		// By running the command via "bash -i -c goose" the iteractive shell
 		// prevents it from exiting and goose starts normally.
-		command = append([]string{"bash", "-i", "-c"}, command...)
+		command = []string{"bash", "-i", "-c", strings.Join(command, " ")}
 	}
 
 	args = append(args, command...)