feat: add session resumption

registry/coder-labs/modules/cursor-cli/main.tf

@@ -108,6 +108,18 @@ variable "post_install_script" {
   default     = null
 }
 
+variable "continue" {
+  type        = bool
+  description = "Automatically continue existing sessions on workspace restart. When true, resumes existing conversation if found, otherwise creates new session. When false, always starts fresh."
+  default     = true
+}
+
+variable "resume_session_id" {
+  type        = string
+  description = "Resume a specific session by ID. Takes precedence over automatic session detection."
+  default     = ""
+}
+
 locals {
   app_slug        = "cursorcli"
   install_script  = file("${path.module}/scripts/install.sh")
@@ -158,6 +170,8 @@ module "agentapi" {
       ARG_FORCE='${var.force}' \
       ARG_MODEL='${var.model}' \
       ARG_AI_PROMPT='${base64encode(var.ai_prompt)}' \
+      ARG_CONTINUE='${var.continue}' \
+      ARG_RESUME_SESSION_ID='${var.resume_session_id}' \
       ARG_MODULE_DIR_NAME='${local.module_dir_name}' \
       ARG_FOLDER='${var.folder}' \
      /tmp/start.sh

registry/coder-labs/modules/cursor-cli/scripts/install.sh

@@ -9,6 +9,7 @@ command_exists() {
 
 # Inputs
 ARG_INSTALL=${ARG_INSTALL:-true}
+ARG_VERSION=${ARG_VERSION:-latest}
 ARG_MODULE_DIR_NAME=${ARG_MODULE_DIR_NAME:-.cursor-cli-module}
 ARG_FOLDER=${ARG_FOLDER:-$HOME}
 ARG_CODER_MCP_APP_STATUS_SLUG=${ARG_CODER_MCP_APP_STATUS_SLUG:-}
@@ -20,6 +21,7 @@ ARG_WORKSPACE_RULES_JSON=$(echo -n "$ARG_WORKSPACE_RULES_JSON" | base64 -d)
 
 echo "--------------------------------"
 echo "install: $ARG_INSTALL"
+echo "version: $ARG_VERSION"
 echo "folder: $ARG_FOLDER"
 echo "coder_mcp_app_status_slug: $ARG_CODER_MCP_APP_STATUS_SLUG"
 echo "module_dir_name: $ARG_MODULE_DIR_NAME"

registry/coder-labs/modules/cursor-cli/scripts/start.sh

@@ -10,24 +10,36 @@ command_exists() {
 ARG_AI_PROMPT=$(echo -n "${ARG_AI_PROMPT:-}" | base64 -d)
 ARG_FORCE=${ARG_FORCE:-false}
 ARG_MODEL=${ARG_MODEL:-}
-ARG_OUTPUT_FORMAT=${ARG_OUTPUT_FORMAT:-json}
+ARG_CONTINUE=${ARG_CONTINUE:-true}
+ARG_RESUME_SESSION_ID=${ARG_RESUME_SESSION_ID:-}
 ARG_MODULE_DIR_NAME=${ARG_MODULE_DIR_NAME:-.cursor-cli-module}
 ARG_FOLDER=${ARG_FOLDER:-$HOME}
 
 echo "--------------------------------"
-echo "install: $ARG_INSTALL"
-echo "version: $ARG_VERSION"
 echo "folder: $ARG_FOLDER"
 echo "ai_prompt: $ARG_AI_PROMPT"
 echo "force: $ARG_FORCE"
 echo "model: $ARG_MODEL"
-echo "output_format: $ARG_OUTPUT_FORMAT"
+echo "continue: $ARG_CONTINUE"
+echo "resume_session_id: ${ARG_RESUME_SESSION_ID:-<none>}"
 echo "module_dir_name: $ARG_MODULE_DIR_NAME"
-echo "folder: $ARG_FOLDER"
 echo "--------------------------------"
 
 mkdir -p "$HOME/$ARG_MODULE_DIR_NAME"
 
+SESSION_FILE="$HOME/$ARG_MODULE_DIR_NAME/session_id.txt"
+
+get_stored_session_id() {
+  if [ -f "$SESSION_FILE" ]; then
+    cat "$SESSION_FILE" | tr -d '\n' || echo ""
+  fi
+}
+
+store_session_id() {
+  echo "$1" > "$SESSION_FILE"
+  echo "Stored session ID: $1"
+}
+
 # Find cursor agent cli
 if command_exists cursor-agent; then
   CURSOR_CMD=cursor-agent
@@ -56,6 +68,34 @@ if [ "$ARG_FORCE" = "true" ]; then
   ARGS+=("-f")
 fi
 
+if [ -n "$ARG_RESUME_SESSION_ID" ]; then
+  echo "Using explicit resume_session_id: $ARG_RESUME_SESSION_ID"
+  ARGS+=("--resume" "$ARG_RESUME_SESSION_ID")
+
+elif [ "$ARG_CONTINUE" = "true" ]; then
+  STORED_SESSION=$(get_stored_session_id)
+
+  if [ -n "$STORED_SESSION" ]; then
+    echo "Found existing session: $STORED_SESSION"
+    echo "Resuming conversation..."
+    ARGS+=("--resume" "$STORED_SESSION")
+  else
+    echo "No existing session found"
+    echo "Creating new session for this workspace..."
+    NEW_SESSION=$($CURSOR_CMD create-chat 2>&1 | tr -d '\n')
+    if [ -n "$NEW_SESSION" ]; then
+      store_session_id "$NEW_SESSION"
+      ARGS+=("--resume" "$NEW_SESSION")
+    else
+      echo "Warning: Failed to create session, continuing without session resume"
+    fi
+  fi
+
+else
+  echo "Continue disabled, starting fresh session"
+  rm -f "$SESSION_FILE"
+fi
+
 if [ -n "$ARG_AI_PROMPT" ]; then
   printf "AI prompt provided\n"
   ARGS+=("Complete the task at hand in one go. Every step of the way, report your progress using coder_report_task tool with proper summary and statuses. Your task at hand: $ARG_AI_PROMPT")

registry/coder-labs/modules/cursor-cli/testdata/cursor-cli-mock.sh

@@ -6,6 +6,11 @@ if [[ "$1" == "--version" ]]; then
   exit 0
 fi
 
+if [[ "$1" == "create-chat" ]]; then
+  echo "12345678-1234-1234-1234-123456789abc"
+  exit 0
+fi
+
 set -e
 
 while true; do