feat(module/coder-labs/amp): add mode flag and disable animation (#550)

## Description
1. "mode" flag: Set the agent mode (free, rush, smart) — controls the
model, system prompt, and tool selection.
2. `"amp.terminal.animation": false`: This disables the animation.
3. Update the readme

<!-- Briefly describe what this PR does and why -->

## Type of Change

- [ ] New module
- [ ] New template
- [x] Bug fix
- [x] Feature/enhancement
- [x] Documentation
- [ ] Other

## Module Information

<!-- Delete this section if not applicable -->

**Path:** `registry/coder-labs/modules/amp`  
**New version:** `v2.1.0`  
**Breaking change:** [ ] Yes [X] No

## Testing & Validation

- [X] Tests pass (`bun test`)
- [X] Code formatted (`bun fmt`)
- [x] Changes tested locally

## Related Issues

<!-- Link related issues or write "None" if not applicable -->

---------

Co-authored-by: DevCats <christofer@coder.com>

registry/coder-labs/modules/sourcegraph-amp/README.md

@@ -12,12 +12,12 @@ Run [Amp CLI](https://ampcode.com/) in your workspace to access Sourcegraph's AI
 
 ```tf
 module "amp-cli" {
-  source                  = "registry.coder.com/coder-labs/sourcegraph-amp/coder"
+  source           = "registry.coder.com/coder-labs/sourcegraph-amp/coder"
-  version                 = "2.0.2"
+  version          = "2.1.0"
-  agent_id                = coder_agent.example.id
+  agent_id         = coder_agent.example.id
-  sourcegraph_amp_api_key = var.sourcegraph_amp_api_key
+  amp_api_key      = var.amp_api_key
-  install_sourcegraph_amp = true
+  install_amp      = true
-  agentapi_version        = "2.0.2"
+  agentapi_version = "latest"
 }
 ```
 
@@ -48,7 +48,7 @@ variable "amp_api_key" {
 module "amp-cli" {
   count              = data.coder_workspace.me.start_count
   source             = "registry.coder.com/coder-labs/sourcegraph-amp/coder"
-  amp_version        = "2.0.2"
+  amp_version        = "2.1.0"
   agent_id           = coder_agent.example.id
   amp_api_key        = var.amp_api_key # recommended for tasks usage
   workdir            = "/home/coder/project"

registry/coder-labs/modules/sourcegraph-amp/main.tf

@@ -55,7 +55,7 @@ variable "install_agentapi" {
 variable "agentapi_version" {
   type        = string
   description = "The version of AgentAPI to install."
-  default     = "v0.10.0"
+  default     = "v0.11.1"
 }
 
 variable "cli_app" {
@@ -160,6 +160,16 @@ variable "mcp" {
   default     = null
 }
 
+variable "mode" {
+  type        = string
+  description = "Set the agent mode (free, rush, smart) — controls the model, system prompt, and tool selection. Default: smart"
+  default     = "smart"
+  validation {
+    condition     = contains(["", "free", "rush", "smart"], var.mode)
+    error_message = "Invalid mode. Select one from (free, rush, smart)"
+  }
+}
+
 data "external" "env" {
   program = ["sh", "-c", "echo '{\"CODER_AGENT_TOKEN\":\"'$CODER_AGENT_TOKEN'\",\"CODER_AGENT_URL\":\"'$CODER_AGENT_URL'\"}'"]
 }
@@ -170,6 +180,7 @@ locals {
   default_base_config = jsonencode({
     "amp.anthropic.thinking.enabled" = true
     "amp.todos.enabled"              = true
+    "amp.terminal.animation"         = false
   })
 
   user_config       = jsondecode(var.base_amp_config != "" ? var.base_amp_config : local.default_base_config)
@@ -237,6 +248,7 @@ module "agentapi" {
      ARG_AMP_START_DIRECTORY='${var.workdir}' \
      ARG_AMP_TASK_PROMPT='${base64encode(var.ai_prompt)}' \
      ARG_REPORT_TASKS='${var.report_tasks}' \
+     ARG_MODE='${var.mode}' \
      /tmp/start.sh
    EOT
 

registry/coder-labs/modules/sourcegraph-amp/scripts/install.sh

@@ -1,9 +1,4 @@
 #!/bin/bash
-
-if [ -f "$HOME/.bashrc" ]; then
-  source "$HOME"/.bashrc
-fi
-
 set -euo pipefail
 
 # ANSI colors

registry/coder-labs/modules/sourcegraph-amp/scripts/start.sh

@@ -29,6 +29,7 @@ echo "--------------------------------"
 printf "Workspace: %s\n" "$ARG_AMP_START_DIRECTORY"
 printf "Task Prompt: %s\n" "$ARG_AMP_TASK_PROMPT"
 printf "ARG_REPORT_TASKS: %s\n" "$ARG_REPORT_TASKS"
+printf "ARG_MODE: %s\n" "$ARG_MODE"
 echo "--------------------------------"
 
 ensure_command amp
@@ -50,6 +51,13 @@ else
   printf "amp_api_key not provided\n"
 fi
 
+ARGS=()
+
+if [ -n "$ARG_MODE" ]; then
+  printf "Running agent in: %s mode" "$ARG_MODE"
+  ARGS+=(--mode "$ARG_MODE")
+fi
+
 if [ -n "$ARG_AMP_TASK_PROMPT" ]; then
   if [ "$ARG_REPORT_TASKS" == "true" ]; then
     printf "amp task prompt provided : %s" "$ARG_AMP_TASK_PROMPT\n"
@@ -58,8 +66,8 @@ if [ -n "$ARG_AMP_TASK_PROMPT" ]; then
     PROMPT="$ARG_AMP_TASK_PROMPT"
   fi
   # Pipe the prompt into amp, which will be run inside agentapi
-  agentapi server --type amp --term-width=67 --term-height=1190 -- bash -c "echo \"$PROMPT\" | amp"
+  agentapi server --type amp --term-width=67 --term-height=1190 -- bash -c "echo \"$PROMPT\" | amp" "${ARGS[@]}"
 else
   printf "No task prompt given.\n"
-  agentapi server --type amp --term-width=67 --term-height=1190 -- amp
+  agentapi server --type amp --term-width=67 --term-height=1190 -- amp "${ARGS[@]}"
 fi