restart-nginx

name	restart-nginx
description	SSH into a server, restart Nginx, and verify it's back up
user-invocable	true

Input Parameters

Name	Type	Required	Description
host	string	Yes	Target server hostname or IP

Execution Flow

Task Context

Before starting execution, initialize task_context.json:

{
  "task_id": "<task_id from input>",
  "current_step": 0,
  "current_step_id": null,
  "status": "running",
  "steps": {
    "restart": "pending",
    "verify": "pending"
  },
  "updated_at": "<ISO timestamp>"
}

Update this file after each step completes. On error, set step status to "failed" and overall status to "failed".

Step 1: restart

Type: agent Description: SSH in and restart Nginx

Execution

Launch an independent agent with the following prompt file:

Dispatch instruction:

SSH into {host} and run systemctl restart nginx

Agent workflow:

1. Prepare the execution environment

2. Execute the agent with the prompt

3. Write results to:

   • File: restart_result.json

Output

• Schema: schemas/restart.schema.json
  • File: restart_result.json

Progress Tracking

After completing this step, update task_context.json:

• Set current_step_id to "restart"
• Set steps.restart to "completed"

Step 2: verify

Type: agent Description: Verify Nginx is healthy

Input Files

• restart_result.json (from Step restart, schema: schemas/restart.schema.json)

Execution

Launch an independent agent with the following prompt file:

Dispatch instruction:

curl http://{host}/health and check the status code

Agent workflow:

1. Read input data from:

   • Schema: schemas/restart.schema.json

2. Execute the agent with the prompt

3. Write results to:

   • File: verify_result.json

Output

• Schema: schemas/verify.schema.json
  • File: verify_result.json

Progress Tracking

After completing this step, update task_context.json:

• Set current_step_id to "verify"
• Set steps.verify to "completed"