feat(coder/modules/claude-code): add enable_state_persistence variable (#749)

feat(coder/modules/claude-code): add enable_state_persistence variable

Expose the agentapi module's state persistence toggle so users can
control conversation state persistence across workspace restarts.
Enabled by default, set `enable_state_persistence = false` to disable.

Also bumps agentapi dependency from 2.0.0 to 2.2.0 and claude-code
to 4.8.0.

Refs coder/internal#1258

registry/coder/modules/claude-code/README.md

@@ -13,7 +13,7 @@ Run the [Claude Code](https://docs.anthropic.com/en/docs/agents-and-tools/claude
 ```tf
 module "claude-code" {
   source         = "registry.coder.com/coder/claude-code/coder"
-  version        = "4.7.5"
+  version        = "4.8.0"
   agent_id       = coder_agent.main.id
   workdir        = "/home/coder/project"
   claude_api_key = "xxxx-xxxxx-xxxx"
@@ -36,6 +36,19 @@ module "claude-code" {
 
 By default, Claude Code automatically resumes existing conversations when your workspace restarts. Sessions are tracked per workspace directory, so conversations continue where you left off. If no session exists (first start), your `ai_prompt` will run normally. To disable this behavior and always start fresh, set `continue = false`
 
+## State Persistence
+
+AgentAPI can save and restore its conversation state to disk across workspace restarts. This complements `continue` (which resumes the Claude CLI session) by also preserving the AgentAPI-level context. Enabled by default, requires agentapi >= v0.12.0 (older versions skip it with a warning).
+
+To disable:
+
+```tf
+module "claude-code" {
+  # ... other config
+  enable_state_persistence = false
+}
+```
+
 ## Examples
 
 ### Usage with Agent Boundaries
@@ -47,7 +60,7 @@ By default, when `enable_boundary = true`, the module uses `coder boundary` subc
 ```tf
 module "claude-code" {
   source          = "registry.coder.com/coder/claude-code/coder"
-  version         = "4.7.5"
+  version         = "4.8.0"
   agent_id        = coder_agent.main.id
   workdir         = "/home/coder/project"
   enable_boundary = true
@@ -68,7 +81,7 @@ For tasks integration with AI Bridge, add `enable_aibridge = true` to the [Usage
 ```tf
 module "claude-code" {
   source          = "registry.coder.com/coder/claude-code/coder"
-  version         = "4.7.5"
+  version         = "4.8.0"
   agent_id        = coder_agent.main.id
   workdir         = "/home/coder/project"
   enable_aibridge = true
@@ -97,7 +110,7 @@ data "coder_task" "me" {}
 
 module "claude-code" {
   source    = "registry.coder.com/coder/claude-code/coder"
-  version   = "4.7.5"
+  version   = "4.8.0"
   agent_id  = coder_agent.main.id
   workdir   = "/home/coder/project"
   ai_prompt = data.coder_task.me.prompt
@@ -120,7 +133,7 @@ This example shows additional configuration options for version pinning, custom
 ```tf
 module "claude-code" {
   source   = "registry.coder.com/coder/claude-code/coder"
-  version  = "4.7.5"
+  version  = "4.8.0"
   agent_id = coder_agent.main.id
   workdir  = "/home/coder/project"
 
@@ -176,7 +189,7 @@ Run and configure Claude Code as a standalone CLI in your workspace.
 ```tf
 module "claude-code" {
   source              = "registry.coder.com/coder/claude-code/coder"
-  version             = "4.7.5"
+  version             = "4.8.0"
   agent_id            = coder_agent.main.id
   workdir             = "/home/coder/project"
   install_claude_code = true
@@ -198,7 +211,7 @@ variable "claude_code_oauth_token" {
 
 module "claude-code" {
   source                  = "registry.coder.com/coder/claude-code/coder"
-  version                 = "4.7.5"
+  version                 = "4.8.0"
   agent_id                = coder_agent.main.id
   workdir                 = "/home/coder/project"
   claude_code_oauth_token = var.claude_code_oauth_token
@@ -271,7 +284,7 @@ resource "coder_env" "bedrock_api_key" {
 
 module "claude-code" {
   source   = "registry.coder.com/coder/claude-code/coder"
-  version  = "4.7.5"
+  version  = "4.8.0"
   agent_id = coder_agent.main.id
   workdir  = "/home/coder/project"
   model    = "global.anthropic.claude-sonnet-4-5-20250929-v1:0"
@@ -328,7 +341,7 @@ resource "coder_env" "google_application_credentials" {
 
 module "claude-code" {
   source   = "registry.coder.com/coder/claude-code/coder"
-  version  = "4.7.5"
+  version  = "4.8.0"
   agent_id = coder_agent.main.id
   workdir  = "/home/coder/project"
   model    = "claude-sonnet-4@20250514"

registry/coder/modules/claude-code/main.tf

@@ -261,6 +261,12 @@ variable "enable_aibridge" {
   }
 }
 
+variable "enable_state_persistence" {
+  type        = bool
+  description = "Enable AgentAPI conversation state persistence across restarts."
+  default     = true
+}
+
 resource "coder_env" "claude_code_md_path" {
   count    = var.claude_md_path == "" ? 0 : 1
   agent_id = var.agent_id
@@ -356,25 +362,26 @@ locals {
 
 module "agentapi" {
   source  = "registry.coder.com/coder/agentapi/coder"
-  version = "2.0.0"
+  version = "2.2.0"
 
-  agent_id             = var.agent_id
-  web_app_slug         = local.app_slug
-  web_app_order        = var.order
-  web_app_group        = var.group
-  web_app_icon         = var.icon
-  web_app_display_name = var.web_app_display_name
-  folder               = local.workdir
-  cli_app              = var.cli_app
-  cli_app_slug         = var.cli_app ? "${local.app_slug}-cli" : null
-  cli_app_display_name = var.cli_app ? var.cli_app_display_name : null
-  agentapi_subdomain   = var.subdomain
-  module_dir_name      = local.module_dir_name
-  install_agentapi     = var.install_agentapi
-  agentapi_version     = var.agentapi_version
-  pre_install_script   = var.pre_install_script
-  post_install_script  = var.post_install_script
-  start_script         = <<-EOT
+  agent_id                 = var.agent_id
+  web_app_slug             = local.app_slug
+  web_app_order            = var.order
+  web_app_group            = var.group
+  web_app_icon             = var.icon
+  web_app_display_name     = var.web_app_display_name
+  folder                   = local.workdir
+  cli_app                  = var.cli_app
+  cli_app_slug             = var.cli_app ? "${local.app_slug}-cli" : null
+  cli_app_display_name     = var.cli_app ? var.cli_app_display_name : null
+  agentapi_subdomain       = var.subdomain
+  module_dir_name          = local.module_dir_name
+  install_agentapi         = var.install_agentapi
+  agentapi_version         = var.agentapi_version
+  enable_state_persistence = var.enable_state_persistence
+  pre_install_script       = var.pre_install_script
+  post_install_script      = var.post_install_script
+  start_script             = <<-EOT
     #!/bin/bash
     set -o errexit
     set -o pipefail

registry/coder/modules/claude-code/main.tftest.hcl

@@ -387,6 +387,36 @@ run "test_aibridge_disabled_with_api_key" {
   }
 }
 
+run "test_enable_state_persistence_default" {
+  command = plan
+
+  variables {
+    agent_id = "test-agent"
+    workdir  = "/home/coder"
+  }
+
+  assert {
+    condition     = var.enable_state_persistence == true
+    error_message = "enable_state_persistence should default to true"
+  }
+}
+
+run "test_disable_state_persistence" {
+  command = plan
+
+  variables {
+    agent_id                 = "test-agent"
+    workdir                  = "/home/coder"
+    enable_state_persistence = false
+  }
+
+  assert {
+    condition     = var.enable_state_persistence == false
+    error_message = "enable_state_persistence should be false when explicitly disabled"
+  }
+}
+
+
 run "test_no_api_key_no_env" {
   command = plan