JuliusBrussee/caveman · error

repair forgotten successor: %w

Error message

repair forgotten successor: %w

What it means

The UPDATE repairing the forgotten memory's successor's supersedes pointer failed inside the Forget transaction. The wrapped error is the SQLite failure; rollback keeps lineage intact.

Source

Thrown at mem/store.go:353

		if err == sql.ErrNoRows {
			return false, nil
		}
		return false, fmt.Errorf("read forgotten memory: %w", err)
	}
	if supersedes.Valid {
		if _, err := tx.Exec(
			`UPDATE memories SET superseded_by = ? WHERE id = ?`,
			nullableLineageID(supersededBy), supersedes.String,
		); err != nil {
			return false, fmt.Errorf("repair forgotten predecessor: %w", err)
		}
	}
	if supersededBy.Valid {
		if _, err := tx.Exec(
			`UPDATE memories SET supersedes = ? WHERE id = ?`,
			nullableLineageID(supersedes), supersededBy.String,
		); err != nil {
			return false, fmt.Errorf("repair forgotten successor: %w", err)
		}
	}
	if _, err := tx.Exec(`DELETE FROM memories WHERE id = ?`, id); err != nil {
		return false, fmt.Errorf("forget: %w", err)
	}
	if err := tx.Commit(); err != nil {
		return false, fmt.Errorf("forget commit: %w", err)
	}
	return true, nil
}

func nullableLineageID(value sql.NullString) any {
	if value.Valid {
		return value.String
	}
	return nil
}

View on GitHub (pinned to 766dce6b13)

Solutions

1. Retry the forget
2. Check db locks/writability

When it happens

Trigger: Thrown at mem/store.go:353 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of JuliusBrussee/caveman@766dce6b13 (2026-08-18). Data as JSON: /api/errors/a9b62aa98ea10db7. Report an issue: GitHub.