kiro: wire session CWD through to EnvState; o: add new command

- backend: add CWD field to GenerationParams for environment state
- kiro: pass session CWD to kiroCurrentEnvState instead of hardcoded '/'
- agent/runtime: set GenParams.CWD from session cwd in BuildRuntime
- o new: create sessions and agents via 9P filesystem
- o prompt: support piped stdin for non-interactive use

agent/runtime.go

@@ -174,6 +174,7 @@ func BuildRuntime(cfg *AgentConfig, srv *toolsrv.Conn, cwd string, env []string,
 		genParams = cfg.GenerationParams
 		maxSteps = cfg.MaxSteps
 	}
+	genParams.CWD = cwd
 
 	exec := func(ctx context.Context, name string, args json.RawMessage) (string, []backend.ContentBlock, error) {
 		if srv == nil {

backend/backend.go

@@ -140,6 +140,10 @@ type GenerationParams struct {
 	IncludeReasoning    *bool    `json:"includeReasoning,omitempty"`
 	ResponseFormat      string   `json:"responseFormat,omitempty"`
 	Stop                []string `json:"stop,omitempty"`
+
+	// Environment state for backends that support it (e.g., Kiro).
+	// These are passed through to the backend API but not used for sampling.
+	CWD string `json:"-"` // Current working directory
 }
 
 // Backend is the interface all LLM providers must implement.

backend/kiro.go

@@ -315,7 +315,7 @@ func buildKiroRequest(model string, messages []Message, tools []Tool, profileARN
 		if err != nil {
 			return nil, err
 		}
-		current = kiroChatMessage{UserInputMessage: encodeKiroUserMessage(messages[len(messages)-1], model, encodedTools, nil, true)}
+		current = kiroChatMessage{UserInputMessage: encodeKiroUserMessage(messages[len(messages)-1], model, encodedTools, nil, params.CWD)}
 
 	case "tool":
 		// Find the last non-tool message.
@@ -328,7 +328,7 @@ func buildKiroRequest(model string, messages []Message, tools []Tool, profileARN
 			return nil, err
 		}
 		toolResults, images := encodeKiroToolResults(messages[cutoff+1:])
-		current = kiroChatMessage{UserInputMessage: emptyKiroUserMessage(model, encodedTools, toolResults, images, true)}
+		current = kiroChatMessage{UserInputMessage: emptyKiroUserMessage(model, encodedTools, toolResults, images, params.CWD)}
 
 	default:
 		return nil, fmt.Errorf("last message role %q is not supported (expected user, system, or tool)", lastRole)
@@ -363,7 +363,7 @@ func encodeKiroHistory(messages []Message) ([]kiroChatMessage, error) {
 		m := messages[i]
 		switch strings.ToLower(strings.TrimSpace(m.Role)) {
 		case "user", "system":
-			out = append(out, kiroChatMessage{UserInputMessage: encodeKiroUserMessage(m, "", nil, nil, false)})
+			out = append(out, kiroChatMessage{UserInputMessage: encodeKiroUserMessage(m, "", nil, nil, "")})
 		case "assistant":
 			out = append(out, kiroChatMessage{AssistantResponseMessage: encodeKiroAssistantMessage(m)})
 		case "tool":
@@ -373,13 +373,13 @@ func encodeKiroHistory(messages []Message) ([]kiroChatMessage, error) {
 				i++
 			}
 			results, imgs := encodeKiroToolResults(messages[start : i+1])
-			out = append(out, kiroChatMessage{UserInputMessage: emptyKiroUserMessage("", nil, results, imgs, false)})
+			out = append(out, kiroChatMessage{UserInputMessage: emptyKiroUserMessage("", nil, results, imgs, "")})
 		}
 	}
 	return out, nil
 }
 
-func encodeKiroUserMessage(m Message, modelID string, tools []kiroTool, toolResults []kiroToolResult, includeEnvState bool) *kiroUserInputMessage {
+func encodeKiroUserMessage(m Message, modelID string, tools []kiroTool, toolResults []kiroToolResult, cwd string) *kiroUserInputMessage {
 	msg := &kiroUserInputMessage{
 		Content: kiroExtractTextContent(m),
 		Origin:  kiroDefaultOrigin,
@@ -393,8 +393,8 @@ func encodeKiroUserMessage(m Message, modelID string, tools []kiroTool, toolResu
 	if len(toolResults) > 0 {
 		ctx.ToolResults = toolResults
 	}
-	if includeEnvState {
-		ctx.EnvState = kiroCurrentEnvState()
+	if cwd != "" {
+		ctx.EnvState = kiroCurrentEnvState(cwd)
 	}
 	if len(ctx.Tools) > 0 || len(ctx.ToolResults) > 0 || ctx.EnvState != nil {
 		msg.UserInputMessageContext = ctx
@@ -402,7 +402,7 @@ func encodeKiroUserMessage(m Message, modelID string, tools []kiroTool, toolResu
 	return msg
 }
 
-func emptyKiroUserMessage(modelID string, tools []kiroTool, toolResults []kiroToolResult, images []kiroImageBlock, includeEnvState bool) *kiroUserInputMessage {
+func emptyKiroUserMessage(modelID string, tools []kiroTool, toolResults []kiroToolResult, images []kiroImageBlock, cwd string) *kiroUserInputMessage {
 	msg := &kiroUserInputMessage{
 		Content: "",
 		Origin:  kiroDefaultOrigin,
@@ -416,8 +416,8 @@ func emptyKiroUserMessage(modelID string, tools []kiroTool, toolResults []kiroTo
 	if len(toolResults) > 0 {
 		ctx.ToolResults = toolResults
 	}
-	if includeEnvState {
-		ctx.EnvState = kiroCurrentEnvState()
+	if cwd != "" {
+		ctx.EnvState = kiroCurrentEnvState(cwd)
 	}
 	if len(ctx.Tools) > 0 || len(ctx.ToolResults) > 0 || ctx.EnvState != nil {
 		msg.UserInputMessageContext = ctx
@@ -564,10 +564,10 @@ func kiroExtractImages(m Message) []kiroImageBlock {
 	return images
 }
 
-func kiroCurrentEnvState() *kiroEnvState {
+func kiroCurrentEnvState(cwd string) *kiroEnvState {
 	return &kiroEnvState{
 		OperatingSystem:         runtime.GOOS,
-		CurrentWorkingDirectory: "/",
+		CurrentWorkingDirectory: cwd,
 	}
 }
 

data/scripts/o

@@ -12,6 +12,7 @@
 #   read   <path>         Read a file (-l to loop)
 #   write  <path> [data]  Write to a file (args or stdin)
 #   ls     [path]         List namespace entries
+#   new    <session> [agent] [cwd]  Create a new session or agent
 #   ctl    <command>      Send a control command (stop, compact, kill, ...)
 #   prompt                Interactive REPL for submitting prompts (requires agent)
 #   chatstream            Stream chat output (requires agent)
@@ -280,6 +281,13 @@ cmd_prompt() {
     fi
     local path="session/$s/agent/$a"
 
+    # If stdin is not a terminal, read it all and send as a single prompt
+    if [[ ! -t 0 ]]; then
+        cat | ollie-9p write "$path/prompt"
+        return
+    fi
+
+    # Interactive REPL mode
     echo "[$s/$a]"
     echo "Type . on a blank line to send, Ctrl+D to exit."
     echo "/ prefix runs ctl: /stop, /compact, /model X, /inject X"
@@ -386,6 +394,30 @@ cmd_env() {
     fi
 }
 
+cmd_new() {
+    if [[ $# -lt 1 ]]; then
+        echo "usage: o new <session> [agent] [cwd]" >&2
+        echo "  o new myproject              Create a new session named 'myproject'" >&2
+        echo "  o new myproject coding /path Create agent 'coding' in session 'myproject'" >&2
+        exit 1
+    fi
+
+    local session_name="$1"
+    shift
+
+    if [[ $# -eq 0 ]]; then
+        # Create new session
+        printf 'name=%s\ncwd=%s\n' "$session_name" "$PWD" | ollie-9p write "session/new"
+        echo "created session: $session_name"
+    else
+        # Create new agent in existing session
+        local agent_name="$1"
+        local agent_cwd="${2:-$PWD}"
+        printf 'name=%s\ncwd=%s\n' "$agent_name" "$agent_cwd" | ollie-9p write "session/$session_name/agent/new"
+        echo "created agent: $session_name/$agent_name"
+    fi
+}
+
 cmd_tui() {
     local tmux_session="${session:-}"
     local s a
@@ -483,6 +515,9 @@ Commands:
   write <path> [data]  Write to a file (args or stdin)
   ls [path]            List namespace entries
 
+  new <session>              Create a new session
+  new <session> <agent> [cwd] Create an agent in a session
+
   generate <prompt>    One-shot generation (no session needed)
 
   ctl <cmd> [args]     Send control command (rdwr: gets response)
@@ -506,6 +541,8 @@ Examples:
   o read -l statewait            # block-loop on state changes
   o read chat                    # stream chat (filtered text)
   o read chat.raw                # stream chat (full markup)
+  o new myproject                # create session 'myproject' in current dir
+  o new myproject coding         # create agent 'coding' in 'myproject'
   o generate "explain monads"    # one-shot, no session
   o ctl stop                     # stop agent (uses $session/$agent)
   o ctl kill mysession           # kill session by name
@@ -529,6 +566,7 @@ case "$subcmd" in
     ctl)      cmd_ctl "$@" ;;
     prompt)   cmd_prompt "$@" ;;
     log)      cmd_log "$@" ;;
+    new)      cmd_new "$@" ;;
     tui)      cmd_tui "$@" ;;
     env)      cmd_env "$@" ;;
     help|-h|--help) cmd_help ;;