{
  "id": "cloud-agent-with-aws-strands",
  "title": "Cloud Agent With AWS Strands",
  "level": 4,
  "levelName": "Systems",
  "tagline": "A scoped cloud incident reader with an execution receipt for every cache hit and retry.",
  "summary": "A scoped cloud incident reader with an execution receipt for every cache hit and retry. Import run(payload, provider). The provider receives only a validated operation and scoped resource. The optional Strands model proposes a plan; it never bypasses the deterministic validator.",
  "hours": 8,
  "languages": ["Python"],
  "status": "ready",
  "source": "core",
  "author": {
    "name": "AI Engineering from Scratch",
    "github": "rohitg00"
  },
  "youWillBuild": "A scoped cloud incident reader with an execution receipt for every cache hit and retry.",
  "usefulFor": [
    "Import run(payload, provider). The provider receives only a validated operation and scoped resource. The optional Strands model proposes a plan; it never bypasses the deterministic validator."
  ],
  "skills": [
    "Validate a scoped cloud inspection plan",
    "Execute reads within step and response budgets",
    "Retry transient reads and reuse completed requests",
    "Drive the actual Strands loop with a local model"
  ],
  "prerequisites": [
    "Python 3.10+",
    "JSON, sets, exceptions, callbacks and environment configuration. Optional SDK comparisons use requirements-framework.txt."
  ],
  "figures": true,
  "overviewFigure": "pj-cloud-agent-with-aws-strands-1",
  "languageWhy": {
    "Python": "Stdlib data structures, explicit algorithms and deterministic local tests."
  },
  "demo": {
    "cwd": "solution",
    "command": [
      "python3",
      "cli.py",
      "samples/input.json",
      "--output",
      "incident.json"
    ]
  },
  "stages": [
    {
      "id": "01-plan",
      "title": "Validate a scoped cloud inspection plan",
      "summary": "A delete operation or an out-of-scope resource fails before any provider call.",
      "language": "python",
      "languageWhy": "Python standard-library collections, bytes and file operations expose this stage directly.",
      "hours": 2,
      "difficulty": "starter",
      "figure": "pj-cloud-agent-with-aws-strands-1",
      "concepts": ["validate", "a", "scoped", "cloud"]
    },
    {
      "id": "02-executor",
      "title": "Execute reads within step and response budgets",
      "summary": "A zero-step budget performs no provider calls and returns budget_exhausted.",
      "language": "python",
      "languageWhy": "Python standard-library collections, bytes and file operations expose this stage directly.",
      "hours": 2,
      "difficulty": "core",
      "figure": "pj-cloud-agent-with-aws-strands-2",
      "concepts": ["execute", "reads", "within", "step"]
    },
    {
      "id": "03-retry",
      "title": "Retry transient reads and reuse completed requests",
      "summary": "A transient timeout retries, while a permission failure is propagated after one call.",
      "language": "python",
      "languageWhy": "Python standard-library collections, bytes and file operations expose this stage directly.",
      "hours": 2,
      "difficulty": "core",
      "figure": "pj-cloud-agent-with-aws-strands-3",
      "concepts": ["retry", "transient", "reads", "and"]
    },
    {
      "id": "04-strands-adapter",
      "title": "Drive the actual Strands loop with a local model",
      "summary": "The framework produces one recorded JSON plan in one model call, then the independent validator checks it.",
      "language": "python",
      "languageWhy": "Python standard-library collections, bytes and file operations expose this stage directly.",
      "hours": 2,
      "difficulty": "stretch",
      "figure": "pj-cloud-agent-with-aws-strands-4",
      "concepts": ["drive", "the", "actual", "strands"],
      "runners": [
        {
          "language": "python"
        },
        {
          "language": "python",
          "optional": true,
          "requires": ["python:strands"],
          "argv": [
            "{python}",
            "-m",
            "unittest",
            "discover",
            "-s",
            "{stage}/tests-framework",
            "-p",
            "test_framework.py"
          ]
        }
      ]
    }
  ],
  "demos": [
    {
      "gif": "media/run.gif",
      "poster": "media/run.png",
      "title": "Initialize and grade",
      "caption": "Recorded starter failure followed by all reference-solution stages passing. Reference passes do not earn learner certificates."
    },
    {
      "gif": "media/output.gif",
      "poster": "media/output.png",
      "title": "Inspect the output",
      "caption": "Actual output from the local deterministic demo command. See the README for fixture and live-adapter limits."
    },
    {
      "gif": "media/framework.gif",
      "poster": "media/framework.png",
      "title": "Verify the real SDK",
      "caption": "Actual optional SDK tests with installed dependencies and deterministic local models. No live cloud or model provider calls."
    }
  ]
}