diff --git a/internal/agent/tools/job_kill.go b/internal/agent/tools/job_kill.go
index 90a44cb131da16a68a4c6cafcd0c6a3f7b2605a9..575496d96714d34147e97b5ca2aefaacd6c68df5 100644
--- a/internal/agent/tools/job_kill.go
+++ b/internal/agent/tools/job_kill.go
@@ -29,7 +29,7 @@ type JobKillResponseMetadata struct {
 func NewJobKillTool() fantasy.AgentTool {
 	return fantasy.NewAgentTool(
 		JobKillToolName,
-		FirstLineDescription(jobKillDescription),
+		string(jobKillDescription),
 		func(ctx context.Context, params JobKillParams, call fantasy.ToolCall) (fantasy.ToolResponse, error) {
 			if params.ShellID == "" {
 				return fantasy.NewTextErrorResponse("missing shell_id"), nil
diff --git a/internal/agent/tools/job_kill.md b/internal/agent/tools/job_kill.md
index 96fbbff7f3eeee6265a4c7e401dc603edd47b96e..276a25aa9aa82c201feda5f97659f3580aa9f9ff 100644
--- a/internal/agent/tools/job_kill.md
+++ b/internal/agent/tools/job_kill.md
@@ -1,4 +1,4 @@
-Terminate a background shell process by ID; shell ID becomes invalid after killing.
+Terminate a background shell process.
 
 <usage>
 - Provide the shell ID returned from a background bash execution