Fix working_dir failures: validate path early, remove hardcoded /root

executor/claude.go: stat working_dir before cmd.Start() so a missing
or inaccessible directory surfaces as a clear error
("working_dir \"/bad/path\": no such file or directory") rather than
an opaque chdir failure wrapped in "starting claude".

api/elaborate.go: replace the hardcoded /root/workspace/claudomator
path with buildElaboratePrompt(workDir) which injects the server's
actual working directory (from os.Getwd() at startup). Empty workDir
tells the model to leave working_dir blank.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/internal/api/elaborate_test.go b/internal/api/elaborate_test.go
index ff158a8..52f7fdf 100644
--- a/internal/api/elaborate_test.go
+++ b/internal/api/elaborate_test.go
@@ -8,6 +8,7 @@ import (
 	"net/http/httptest"
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
 )
 
@@ -28,6 +29,23 @@ func createFakeClaude(t *testing.T, output string, exitCode int) string {
 	return script
 }
 
+func TestElaboratePrompt_ContainsWorkDir(t *testing.T) {
+	prompt := buildElaboratePrompt("/some/custom/path")
+	if !strings.Contains(prompt, "/some/custom/path") {
+		t.Error("prompt should contain the provided workDir")
+	}
+	if strings.Contains(prompt, "/root/workspace/claudomator") {
+		t.Error("prompt should not hardcode /root/workspace/claudomator")
+	}
+}
+
+func TestElaboratePrompt_EmptyWorkDir(t *testing.T) {
+	prompt := buildElaboratePrompt("")
+	if strings.Contains(prompt, "/root") {
+		t.Error("prompt should not reference /root when workDir is empty")
+	}
+}
+
 func TestElaborateTask_Success(t *testing.T) {
 	srv, _ := testServer(t)