{
  "schema_version": 1,
  "date": "2026-09-20",
  "scope": "Fictional scoring arithmetic only. No application, embedding model, database, mailbox, or actual retrieval function was executed.",
  "source": {
    "base_commit": "399c253edb36fda18df11ca869953feeea02bc57",
    "snapshot": "Current local files, including uncommitted chat-view changes. Base commit alone does not identify this snapshot.",
    "hash_algorithm": "SHA-256 of exact file bytes",
    "files": [
      {
        "path": "backend/LifeLine/api/utils/memory_utils.py",
        "sha256": "f345c0b5c10077bd9e2e28dd20a5efeeba69de3834875cd5a4a01da062738c4f",
        "local_changes": false
      },
      {
        "path": "backend/LifeLine/api/utils/constants.py",
        "sha256": "6804bbecd18ed4bcbcb772b68a31a752894e93d9c5bd5e42ce42030f87f9a4d2",
        "local_changes": false
      },
      {
        "path": "backend/LifeLine/api/utils/prompts.py",
        "sha256": "e8071db247e26af42220634a46db7dc22a35e0846105904350452ae89f0f5674",
        "local_changes": false
      },
      {
        "path": "backend/LifeLine/api/views/views.py",
        "sha256": "cb7698f5ed460f2e0b56058d57f4c677f3990d3a34d2a73a5b26a11b52dc3dae",
        "local_changes": true
      },
      {
        "path": "backend/LifeLine/api/models/chat.py",
        "sha256": "3712c442ae218cf3dc00e0c413b5b44cf20bae43e0429277330dea50c78bfe8c",
        "local_changes": false
      },
      {
        "path": "backend/LifeLine/api/utils/llm.py",
        "sha256": "6b228195017e39d94fdf42d2a708b37614fb43ba8097eaca3425ad5703761ffb",
        "local_changes": false
      }
    ]
  },
  "policy": {
    "caller_limit": 5,
    "min_similarity": 0.3,
    "similarity_weight": 0.6,
    "importance_weight": 0.3,
    "recency_weight": 0.1,
    "recency_days": 30,
    "recency_definition": "1 - min(1, whole days since updated_at / 30)",
    "formula": "0.6 * similarity + 0.3 * importance + 0.1 * recency",
    "filter_before_scoring": true
  },
  "fixture": {
    "input_basis": "All descriptions, cosine similarities, importance scores and nonnegative whole-day ages are stipulated. No embeddings or query relevance were measured.",
    "rows": [
      {
        "id": "A",
        "memory": "Prefer diagrams in tutorials",
        "similarity": 0.9,
        "importance": 0.2,
        "age_days": 30,
        "recency": 0,
        "eligible": true,
        "score": 0.6,
        "rank": 3,
        "selected": true
      },
      {
        "id": "B",
        "memory": "Prepare a short workshop outline",
        "similarity": 0.8,
        "importance": 0.9,
        "age_days": 3,
        "recency": 0.9,
        "eligible": true,
        "score": 0.84,
        "rank": 1,
        "selected": true
      },
      {
        "id": "C",
        "memory": "Keep examples runnable",
        "similarity": 0.7,
        "importance": 0.5,
        "age_days": 0,
        "recency": 1,
        "eligible": true,
        "score": 0.67,
        "rank": 2,
        "selected": true
      },
      {
        "id": "D",
        "memory": "Use a small sample project",
        "similarity": 0.6,
        "importance": 0.5,
        "age_days": 15,
        "recency": 0.5,
        "eligible": true,
        "score": 0.56,
        "rank": 4,
        "selected": true
      },
      {
        "id": "E",
        "memory": "Include a glossary",
        "similarity": 0.5,
        "importance": 0.2,
        "age_days": 0,
        "recency": 1,
        "eligible": true,
        "score": 0.46,
        "rank": 5,
        "selected": true
      },
      {
        "id": "F",
        "memory": "Archive old workshop notes",
        "similarity": 0.4,
        "importance": 0.1,
        "age_days": 30,
        "recency": 0,
        "eligible": true,
        "score": 0.27,
        "rank": 6,
        "selected": false
      },
      {
        "id": "G",
        "memory": "Try a new garden layout",
        "similarity": 0.29,
        "importance": 1,
        "age_days": 0,
        "recency": 1,
        "eligible": false,
        "score": null,
        "rank": null,
        "selected": false
      }
    ],
    "expected_ranked_ids": [
      "B",
      "C",
      "A",
      "D",
      "E",
      "F"
    ],
    "expected_selected_ids": [
      "B",
      "C",
      "A",
      "D",
      "E"
    ]
  },
  "downstream": {
    "conversation_limit": 3,
    "conversation_order": "importance descending, creation time descending",
    "deduplication": "Memory ID across relevant and conversation lists",
    "formatter_order": "importance descending, creation time descending",
    "formatter_limit": 8,
    "entry_character_limit": 100,
    "branch": "Ordinary chat only. The inspected Gmail-agent call does not receive the enhanced memory prompt."
  },
  "limits": [
    "Arithmetic is not retrieval quality, an application regression test, or observed runtime behavior.",
    "No end-to-end persistence, user-isolation, reliability, latency, or live availability result.",
    "This fixture has no score ties and does not establish tie behavior.",
    "Similarity rejection applies only to the relevant-memory branch, not conversation-memory selection.",
    "Source files are identified but not redistributed. No personal conversation or deployment configuration is included."
  ]
}