{
  "instruction": "Apply SQLite best practices in Python: connection PRAGMAs, context managers, parameterized queries, row factory",
  "relevant_when": "Agent uses sqlite3 in a Python application",
  "context": "SQLite foreign keys are OFF by default in Python and must be enabled per connection. WAL mode enables concurrent reads. Context managers handle transaction commit/rollback. Row factory enables dict-like access.",
  "sources": [
    {
      "type": "file",
      "filename": "skills/sqlite-python-best-practices/SKILL.md",
      "tile": "tessl-labs/sqlite-python-best-practices@0.1.2"
    }
  ],
  "checklist": [
    {
      "name": "wal-mode-enabled",
      "rule": "Agent sets PRAGMA journal_mode=WAL on the SQLite connection",
      "relevant_when": "Agent creates a SQLite database connection in Python"
    },
    {
      "name": "foreign-keys-enabled",
      "rule": "Agent sets PRAGMA foreign_keys=ON on every SQLite connection (not once globally -- must be per connection)",
      "relevant_when": "Agent creates a SQLite database connection in Python"
    },
    {
      "name": "busy-timeout-set",
      "rule": "Agent sets PRAGMA busy_timeout to a positive value (e.g. 5000) on the connection",
      "relevant_when": "Agent creates a SQLite database connection in Python"
    },
    {
      "name": "row-factory-configured",
      "rule": "Agent sets conn.row_factory = sqlite3.Row for dict-like row access",
      "relevant_when": "Agent creates a SQLite database connection in Python"
    },
    {
      "name": "context-manager-for-writes",
      "rule": "Agent uses 'with conn:' context manager for write operations instead of manual conn.commit()",
      "relevant_when": "Agent writes data to SQLite in Python"
    },
    {
      "name": "parameterized-queries",
      "rule": "Agent uses ? placeholders for all query parameters, never f-strings or string concatenation",
      "relevant_when": "Agent writes SQL queries with dynamic values in Python"
    },
    {
      "name": "connection-closed",
      "rule": "Agent closes SQLite connections in finally blocks or via context managers / dependency injection",
      "relevant_when": "Agent creates SQLite connections in request handlers or functions"
    }
  ]
}